Davis, Judge,
delivered the opinion of the court:
In 1969 and 1970 plaintiff, a United States citizen, was a partner in a Danish accounting firm and had been a resident of Denmark for more than three years. As such, he was entitled by the Internal Revenue Code of 1954, §§ 911(a) (1), (c) (1) (B), to exclude $25,000 of earned income from the computation of his United States income tax. The sole issue now before us in this tax refund suit, raised by the parties’ [249]*249cross-motions for summary judgment, is whether the $25,000 exclusion is to be applied against plaintiff’s share of partnership net income for 1969 and 1970 (plaintiff’s position) or against his allocable share of partnership gross income for those years, with.disallowance of a corresponding portion of his allocable share of partnership expenses (the Government’s position). The parties have provided us with a stipulation of the facts pertinent to this question. Not covered by the stipulation nor before us at this time is an offset issue raised by the Government. It is agreed that this issue will be moot if the Government prevails on its motion for summary judgment but will have to be tried if the plaintiff wins here.
The simple facts are that taxpayer was a bona fide resident of Denmark for an uninterrupted period including January 1,1966 through December 31,1970. For the tax years in issue, 1969 and 1970, he was a partner in a Danish accounting firm, the gross income of which consisted entirely of fees received for services rendered outside the United States. In 1969 plaintiff’s allocable shares of the partnership’s gross income, expenses, and net profits were $348,611, $243,850, and $104,761 respectively. In 1970 his shares were $470,045, $337,121, and $132,924.
In his tax returns for 1969 and 1970, plaintiff excluded $25,000 of his distributable share of partnership net profits as earned income attributable to services performed while a bona fide resident of a foreign country. Upon audit, the Internal Revenue Service disallowed the exclusion of $25,000 of net profits and substituted an exclusion of $25,000 of plaintiff’s allocable share of the partnership’s gross income. In that connection the Service disallowed the deduction of the portion of plaintiff’s allocable share of partnership expenses that was attributable to the excluded gross income. The effect of these adjustments was to increase plaintiff’s taxable income by the amount of disallowed expenses.1 Plaintiff paid [250]*250tbe deficiencies resulting irom the 'Service’s recomputation, filed proper refund claims, and timely filed suit in this court after disallowance.
I
The Internal Revenue Code of 1954, in sections 911(a) (1) and (c)(1)(B), excludes from gross income and exempts from tax $25,000 of foreign-source earned income received by a United States citizen who has been a bona fide resident of a foreign country for more than three years.2 As we have [251]*251said, we must determine whether the $25,000 of earned income excluded and exempt is $25,000 of a partner’s share of partnership net profits, as plaintiff contends, or $25,000 of his share of partnership gross income, as the defendant urges. The Government asserts that the statute is clear and unambiguous and mandates the gross income interpretation. In its view, the section is structured in terms of gross income rather than net profits, and earned income, the income designated as eligible for exclusion, “ [historically * * * has always been a gross income concept.” The defendant concludes that the $25,000 excludable must be $25,000 of gross income, which in the case of a partner is his allocable share of partnership gross income. Int. Rev. Code of 1954 §§ 61(a) (13), 702(c). The Service finds further support for its position in the last sentence of section 911(a), disallowing deductions properly attributable to amounts excluded from gross income.
The plaintiff counters with emphasis on the statute’s use of “and shall be exempt from taxation” and with quotations from committee reports showing Congress’s focus on the amount exempt from taxation; he points out that under the Government’s method the amount exempt from taxation, where the taxpayer is a partner, is less than $25,000 by the sum of disallowed deductions.3 He also disputes the Govem[252]*252ment’s claim that earned income has always been a gross income concept. Most importantly, however, the taxpayer has given us numerous examples of the Service’s application of the section 911 exclusion against a partner’s distributive share of partnership net income and ultimately rests his case on the assertion that he followed the long-standing administrative interpretation, which fixed the meaning of section 911, when he carved out $25,000 of his share of the partnership’s net profits.
II
If the plaintiff has accurately assessed the prevailing administrative practice and interpretation, as we believe he has,4 we must hold for him unless the statute clearly and unambiguously demonstrates that the “partner’s share of net profits” interpretation was wrong and mandates the gross income interpretation now urged by the Government. See, [253]*253e.g., Red Lion Broadcasting Co. v. FCC, 395 U.S. 367, 381 (1969) (the construction of a statute by those charged with its execution should be followed unless there are compelling indications that it is wrong); Udall v. Tallman, 380 U.S. 1, 16, 18 (1965) (to sustain a contemporaneous administratiye construction of a statute, a court need not find that the administrator’s construction is the only reasonable one or that which the court would have reached; the construction need only be reasonable in itself). But as we now show in this part of our opinion, we do not see sufficient clarity in the statute or in its legislative history to override, for the tax years at issue, the interpretation by those charged with the statute’s administration, applied consistently for many years.
•Section 911 does not specifically address the partnership situation and, contrary to the Government’s contention, is not structured around gross income. Although it does state, “The following items shall not be included in gross income,” it continues by saying, “and shall be exempt from taxation.” The amount to be excluded and exempt is described as “amounts received * * * which constitute earned income,” not as gross income or as gross income which constitutes earned income. Further, earned income is not defined in a way that makes it necessarily equivalent to gross income; the definition does not use “gross income” and instead expressly links the earned income of one group of taxpayers to net profits.5 Looked at as a whole, the pertinent portions of the statute pair the exclusion from gross income with exemption from taxation, use “amount excluded from gross income” as a shorthand reference to the amount excluded and exempt, and designate “earned income” as the controlling concept.
In the Government’s submission, however, the use of “earned income” is sufficient to require a gross income interpretation because earned income “ [historically * * * has [254]
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Davis, Judge,
delivered the opinion of the court:
In 1969 and 1970 plaintiff, a United States citizen, was a partner in a Danish accounting firm and had been a resident of Denmark for more than three years. As such, he was entitled by the Internal Revenue Code of 1954, §§ 911(a) (1), (c) (1) (B), to exclude $25,000 of earned income from the computation of his United States income tax. The sole issue now before us in this tax refund suit, raised by the parties’ [249]*249cross-motions for summary judgment, is whether the $25,000 exclusion is to be applied against plaintiff’s share of partnership net income for 1969 and 1970 (plaintiff’s position) or against his allocable share of partnership gross income for those years, with.disallowance of a corresponding portion of his allocable share of partnership expenses (the Government’s position). The parties have provided us with a stipulation of the facts pertinent to this question. Not covered by the stipulation nor before us at this time is an offset issue raised by the Government. It is agreed that this issue will be moot if the Government prevails on its motion for summary judgment but will have to be tried if the plaintiff wins here.
The simple facts are that taxpayer was a bona fide resident of Denmark for an uninterrupted period including January 1,1966 through December 31,1970. For the tax years in issue, 1969 and 1970, he was a partner in a Danish accounting firm, the gross income of which consisted entirely of fees received for services rendered outside the United States. In 1969 plaintiff’s allocable shares of the partnership’s gross income, expenses, and net profits were $348,611, $243,850, and $104,761 respectively. In 1970 his shares were $470,045, $337,121, and $132,924.
In his tax returns for 1969 and 1970, plaintiff excluded $25,000 of his distributable share of partnership net profits as earned income attributable to services performed while a bona fide resident of a foreign country. Upon audit, the Internal Revenue Service disallowed the exclusion of $25,000 of net profits and substituted an exclusion of $25,000 of plaintiff’s allocable share of the partnership’s gross income. In that connection the Service disallowed the deduction of the portion of plaintiff’s allocable share of partnership expenses that was attributable to the excluded gross income. The effect of these adjustments was to increase plaintiff’s taxable income by the amount of disallowed expenses.1 Plaintiff paid [250]*250tbe deficiencies resulting irom the 'Service’s recomputation, filed proper refund claims, and timely filed suit in this court after disallowance.
I
The Internal Revenue Code of 1954, in sections 911(a) (1) and (c)(1)(B), excludes from gross income and exempts from tax $25,000 of foreign-source earned income received by a United States citizen who has been a bona fide resident of a foreign country for more than three years.2 As we have [251]*251said, we must determine whether the $25,000 of earned income excluded and exempt is $25,000 of a partner’s share of partnership net profits, as plaintiff contends, or $25,000 of his share of partnership gross income, as the defendant urges. The Government asserts that the statute is clear and unambiguous and mandates the gross income interpretation. In its view, the section is structured in terms of gross income rather than net profits, and earned income, the income designated as eligible for exclusion, “ [historically * * * has always been a gross income concept.” The defendant concludes that the $25,000 excludable must be $25,000 of gross income, which in the case of a partner is his allocable share of partnership gross income. Int. Rev. Code of 1954 §§ 61(a) (13), 702(c). The Service finds further support for its position in the last sentence of section 911(a), disallowing deductions properly attributable to amounts excluded from gross income.
The plaintiff counters with emphasis on the statute’s use of “and shall be exempt from taxation” and with quotations from committee reports showing Congress’s focus on the amount exempt from taxation; he points out that under the Government’s method the amount exempt from taxation, where the taxpayer is a partner, is less than $25,000 by the sum of disallowed deductions.3 He also disputes the Govem[252]*252ment’s claim that earned income has always been a gross income concept. Most importantly, however, the taxpayer has given us numerous examples of the Service’s application of the section 911 exclusion against a partner’s distributive share of partnership net income and ultimately rests his case on the assertion that he followed the long-standing administrative interpretation, which fixed the meaning of section 911, when he carved out $25,000 of his share of the partnership’s net profits.
II
If the plaintiff has accurately assessed the prevailing administrative practice and interpretation, as we believe he has,4 we must hold for him unless the statute clearly and unambiguously demonstrates that the “partner’s share of net profits” interpretation was wrong and mandates the gross income interpretation now urged by the Government. See, [253]*253e.g., Red Lion Broadcasting Co. v. FCC, 395 U.S. 367, 381 (1969) (the construction of a statute by those charged with its execution should be followed unless there are compelling indications that it is wrong); Udall v. Tallman, 380 U.S. 1, 16, 18 (1965) (to sustain a contemporaneous administratiye construction of a statute, a court need not find that the administrator’s construction is the only reasonable one or that which the court would have reached; the construction need only be reasonable in itself). But as we now show in this part of our opinion, we do not see sufficient clarity in the statute or in its legislative history to override, for the tax years at issue, the interpretation by those charged with the statute’s administration, applied consistently for many years.
•Section 911 does not specifically address the partnership situation and, contrary to the Government’s contention, is not structured around gross income. Although it does state, “The following items shall not be included in gross income,” it continues by saying, “and shall be exempt from taxation.” The amount to be excluded and exempt is described as “amounts received * * * which constitute earned income,” not as gross income or as gross income which constitutes earned income. Further, earned income is not defined in a way that makes it necessarily equivalent to gross income; the definition does not use “gross income” and instead expressly links the earned income of one group of taxpayers to net profits.5 Looked at as a whole, the pertinent portions of the statute pair the exclusion from gross income with exemption from taxation, use “amount excluded from gross income” as a shorthand reference to the amount excluded and exempt, and designate “earned income” as the controlling concept.
In the Government’s submission, however, the use of “earned income” is sufficient to require a gross income interpretation because earned income “ [historically * * * has [254]*254always been a gross income concept.” This pronouncement is demonstrably incorrect in the partnership context and otherwise overstated. In section 911 itself, the earned income of a taxpayer engaged in a trade or business in which both personal services and capital are material income-producing factors is tied to net profits, not to gross income.6 In contexts other than the foreign-source income exclusion, net profits or net income definitions of earned income have surfaced. See, e.g., Warren R. Miller, Sr., 51 T.C. 755, 762-63 (1969) (for purposes of the section 37 retirement income credit, which incorporates the section 911 definition of earned income, earned income is net profits in the self-employment situation); Int. Rev. Code of 1954, § 401(c) (2) (A) (for purposes of rules governing qualified pension and other plans for self-employed and owner-employees, the term “earned income” means net earnings from self-employment).7 Most significantly, section 209 of the Revenue Act of 1924, creating an earned income credit, specifically stated: “In the case of the members of a partnership the proper part of each share of the net income which consists of earned income shall be determined under rules and regulations to be prescribed by the Commissioner with the approval of the Secretary and shall be separately shown in the return of the partnership * * *.” 8 Though separated from the general earned income [255]*255credit provision and placed with the partnership sections in the “supplemental provisions” of the 1928 and later revenue acts, this statute remained part of all revenue acts and the 1939 Code until the earned income credit was repealed,9 and it established the composition of a partner’s earned income for that period. We do not give conclusive effect to this old statute, though we think, with the Second Circuit, that “the rule it established is [a] natural way to interpret the foreign earned income exclusion in the partnership context.”10 But this older piece of legislation11 and the others previously mentioned do demonstrate that earned income 'has not always [256]*256been a gross income concept, that a net profit interpretation of earned income is reasonable in the partnership context, and that there is a crucial gap in the very statute (current section 911) which the Government wants us to declare so clear that even a long-standing administrative construction cannot stand against the Statutory text.
There remains one other Government argument based on the words of section 911 (a). Calling our attention to the last sentence, which requires disallowance of any deductions properly allocable to or chargeable against amounts excluded from gross income, the defendant tells us that the plaintiff’s net income interpretation effectively abrogates this provision in the partnership situation. The primary weakness of this argument is that it presupposes the answer to the issue before us; The Government’s application of the last sentence of section 911(a) would certainly be correct if the earned income excludable by a partner were plainly his share of partnership gross income, for partnership expenses attributable to excluded gross income would surely have to be excluded with the gross income. However, if the earned income to be excluded by a partner is his share of partnership net income, there are no partnership expense deductions to be taken or disallowed, just as there may be no expenses in the case of an employee (see note 3 supra). In short, the application of the last sentence of section 911(a) can be understood as merely following from the delineation of the earned income to be excluded; that sentence does not really clarify the statute which is unclear in its controlling segments.12
[257]*257Thus, we find the statute unclear, containing elements that lend support to the positions of both parties and elements of inadequate definition. To the extent that the legislative history elucidates section 911, it appears to give somewhat greater support to the plaintiff than to the Government.13 Neither the statute nor the legislative history, however, gives us a sure footing on which to resolve the question whether a partner’s earned income is his share of partnership net income or his allocable share of partnership gross income.
in
Since we have ruled against the Government on the clarity of section 911 and remain in doubt on the reading to be given the text of the statute, we turn to the administrative interpretation.14 That construction has received extensive atten[258]*258tion from the taxpayer, who contends that, prior to challenging plaintiff’s returns for 1969 and 1970 and the issuance of a contrary revenue ruling in 1975 (after this litigation had been begun), the Service consistently applied the net profits interpretation urged and followed by plaintiff.
A
Of most immediate significance are the forms and the Tax Guide for U.S. Citizens Abroad (I.R.S. Publication No. 54) given taxpayers by the Service. Through 1968, Form 2555, entitled “Statement to Support Exemption of Income Earned Abroad,” listed these items under earned income: wages, salaries, bonuses, commissions, etc.; pensions and annuities; allowable share of net profit for personal services rendered in a business, in a profession, in farming, in a partnership; other income; allowances or reimbursements. The instructions included with the form did not amplify this clearly worded list of items to be included in earned income; they simply restated the Statute’s general definition of earned income and the statute’s sentence governing a taxpayer engaged in a trade or business in which both services and capital are material income-producing factors, and added, in boldface capitals, examples of items that are not earned income. Like the form, the Tax Guide for U.S. Citizens Abroad explicitly treated a partner’s share of partnership net profit, not of partnership gross income, as the sum to be considered in determining the partner’s excludable earned income; the Guide’s examples designed to illustrate the calculation of a partner’s earned income all Centered on the partnership net profits and the partner’s share thereof.15
[259]*259The Service bas treated, a partner’s share of net income as. the pertinent sum not only in the forms and in the Tax Guide but also in disputes with taxpayers in this and other courts-See Carey v. United States, 192 Ct. Cl. 536, 540, 543-46, 427 F. 2d 763, 765-66 (1970); Andrew O. Miller, Jr., 52 T.C. 752, 756-57 (1969), acquiesced in, 1972-2 Cum. Bull. 2, Foster v. United States, 221 F. Supp. 291, 292-93 (S.D.N.Y. 1963), aff'd, 329 F. 2d 717 (2d Cir. 1964); Thomas Browne Foster, 42 T.C. 974 (1964); cf. Daniel A. Robida, 29 CCH Tax Ct. Mem. 407 (1970), aff'd, 460 F. 2d 1172 (9th Cir. 1972) (Commissioner applied $20,000 exclusion against adjusted gross income of “sole proprietor”). In each of these cases the Government and the partner disputed only the allocation, between foreign-source and United States-source income, of the partner’s distributive share of partnership net income or of the amount actually received by the partner. The Government neither based its calculations on nor mentioned the partner’s allocable share of partnership gross income.16
Buttressing this evidence of the Service position at least through 1968 are revenue rulings interpreting section 911 (and another provision in which section 911 plays a minor role) and regulations under the Code’s partnership provisions. These rulings and regulations are more suggestive than explicit or conclusive, but they add to the force of plaintiff’s arguments and analysis. They show that the Service has consistently assumed the net profits understanding of section 911 “earned income.”
Revenue Ruling 55-171, 1955-1 Cum. Bull. 80, declared obsolete, Rev. Rul. 72-621, 1972-2 Cum. Bull. 651, listed two types of income under the heading “earned income” — compensation for personal services rendered and profit from trade or business. In stating and illustrating the 30-percent-[260]*260of-net-profits limitation where both capital and personal services are income-producing factors, the ruling said: “The balance of the profits must fee included in gross income for Federal income tax purposes.” Id. § 7, 1955-1 Cum. Bull, at 87. The implication is that the balance of net profits would not be included in gross income but for the BO percent limit applicable because of the role of capital.17 Revenue Ruling 67-158, 1967-1 Cum. Bull. 188, concluded that, where capital is not a material income-producing factor, “each partner’s distributive share of that portion of partnership income representing compensation for services rendered by the partnership is ‘earned income.’ ” In the only place in which the ruling referred to each partner’s distributive share in the terms with which we are concerned, the ruling specified “distributive share of net partnership income.” Id., 1967-1 Cum. Bull, at 190, 189. Revenue Ruling 70-491, 1970-2 Cum. Bull. 92, interpreting section 401 of the Code, contains this statement: “Thus, under the provisions of section 1.401-10 (c) (2) of the regulations and section 911 of the Code, up to $25,000 of net earnings is excluded from gross income and, consequently, does not constitute earned income under'section 401(c) (2).” If the Service had viewed section 911 as it does now, the revenue ruling would have read, “Thus, under section 911 of the Code, up to $25,000 of gross income is excluded from gross income, and, under section 1.401-10(c) (2) of the regulations, the net earnings derived from this excluded gross income do not constitute earned income under section 401(c)(2).”18 Finally, in Revenue Ruling 57-142,1957-1 Cum. Bull. 246, [261]*261revoked on other grounds, Rev. Rul. 66-326, 1966-2 Cum. Bull. 281, tbe Service stated tbe question as whether the earned income of a citizen operating a truck farm in Mexico1 was limited by tbe 30-percent rule or was bis entire net earnings.
The regulations under two partnership provisions offer plaintiff some additional support. Section 1.702-1 (c) lists numerous situations in which a partner must take into account his share of partnership gross income. This list does not include section 911, though the same regulation, four paragraphs earlier, requires the earned income of the partnership to be separately stated for all partners if any partner is a bona fide resident of a foreign country who may exclude, under section 911, the part of his distributive share which constitutes earned income. Treas. Beg. § 1.702-1 (a) (8) (ii).19 Example 2 in section 1.704-1 (b) (2) declares that the Service ordinarily will recognize a partnership agreement allocating to a partner who is a resident of a foreign country a percentage of the profit derived from his operations in the foreign country greater than his distributive share of partnership income generally. This suggests once again that profit, not gross receipts, is the significant figure for a foreign resident partner.
B
Against this weighty evidence of an administrative interpretation coinciding with plaintiff’s net profit construction the Government pits two cases, changes made in 1969 in form 2555 and in the Tax Guide for U.S. Citizens Abroad, and Revenue Ruling 75-86, 1975-1 Cum. Bull. 242.20 In addition, the Government, in oral argument, labeled the net profits [262]*262emphasis in the forms and tax guides prior to 1969 as a mistake and a hangover from the years before monetary limits were placed on the amount excludable,21 when it mattered not whether the exclusion related to gross income or to net profits.
To take up first the last of these comments, the forms and .guides cannot be dismissed so easily. The first monetary limitation on the amount of earned income excludable was imposed, against those merely present rather than resident ■abroad, in 1953. Form 2555 (used by taxpayers who meet the presence test and also by those coming under the residence test) as well as the tax guides continued the treatment of net profits as earned income for many years after 1953 and cannot be put 'down as mere careless hangovers. Moreover, all the other sources cited above (Part HI, A), which the Government did not attempt to dismiss as hangovers, relate to the years after the first limit took effect and represent the interpretation contemporaneous with the statutory changes.22
The two cases relied on by the Government, Frieda Hempel, 6 CCH Tax Ct. Mem. 743 (1947) and Brewster v. Commissioner, 473 F. 2d 160 (D.C. Cir. 1972), aff'g 55 T.C. 251 (1970), do not bear the weight placed on them. Both cases involved individuals (one an opera singer and the other a farmer), not carrying on business in the partnership form, who suffered losses in their foreign endeavors and sought to [263]*263apply those losses 'as deductions from TJ.'S.-source income. Although, in both cases the courts held that part or all of the gross receipts had to 'be excluded as earned income and that the expenses had to be excluded to the same extent, the facts are quite distinguishable from the set now before us. As these courts recognized, the situations were exceptional; the holdings were necessary to prevent the deduction of foreign expenses from U.S.-source income.23 Broad statements in opinions resting on such different facts and policies cannot prevail against the mass of directly apposite authority presented by plaintiff.
Similarly, the 1969 changes in form 2553 and the Tax Guide for U.S. Citizens Abroad were inadequate to alter the by then well established administrative rule that a partner’s earned income was a proper part of his share of the partnership net income. The pertinent change in the form itself consisted of the substitution of “income” for “net profit” in the line which had named “allowable share of net profit for personal services rendered in a partnership” as a type of earned income. Neither the form nor the instruction to which the form referred suggested whether “income” meant gross income, net or adjusted gross income, or amount received, and neither was altered in any way that would have alerted the taxpayer to the significance of the change in wording.24 The only amendments in the Tax Guide were isolated substitutions of terms in the segment of the Guide headed “Profit from Trade or Business: Sole Proprietorship or Partnership.” 25 In only one place was “gross income” substituted for “net profits”; in two places “earned income” (which, as we have seen, is not unambiguous) was used in lieu of “net profit,” and in many no changes were made and the use of [264]*264“net profits” continued. Thus, the minor alterations in 1969, if noticeable, were unclear and ambiguous at best. The Service certainly did not call taxpayers’ attention to or clearly explain the changes, which therefore were inadequate to effect a turn-about in the long-standing interpretation which had prevailed until that time.
We are left, then, with Revenue Ruling 75-86,1975-1 Cum. Bunn. 242, as the only clear and pertinent administrative adoption of the interpretation the Government presses here.26 This ruling, however, was issued only after this litigation began, does not state that it is to be retroactive, conflicts with the interpretation in effect during the tax years involved in this suit, and adversely affects this taxpayer. Whatever its prospective effect may be — an issue we are not called upon to decide — Revenue Ruling 75-86 cannot be applied retroactively to the plaintiff’s 1969 and 1970 tax years. See Crespo v. United States, 185 Ct. Cl. 127, 399 F. 2d 191 (1968); American Potash & Chem. Corp. v. United States, 185 Ct. Cl. 161, [265]*265179, 399 F. 2d 194, 205, on petition for reconsideration, 185 Ct. Cl. 186, 402 F. 2d 1000 (1968).27
C
In conclusion, then, plaintiff has demonstrated that the long-standing administrative intepretation, manifested in many publications and actions, ■ related a partner’s earned income to his share of partnership net income. The Government has countered the plaintiff’s analysis only with an interpretation reached many years after all significant legislative action had been completed (and after the tax years in issue) and with a suggestion that the Service had not focused on the issue prior to the taxable years. We can say with the Supreme Court in Fribourg Navigation Co. v. Commissioner, 383 U.S. 272, 280 (1966), that “[t]his is hardly a persuasive response to the overwhelmingly consistent display of his [the Commissioner’s] position.” The net income interpretation for partners, contemporaneous with the first statutory imposition of limits on the amount excludable and maintained for many years through changes in the statute, fixed the meaning of section 911 for this taxpayer during the years in suit, 1969 and 1970. See NLRB v. Bell Aerospace Co., 416 U.S. 267, 274-75 (1974); Red Lion Broadcasting Co. v. FCC, 395 U.S. 367, 381 (1969); Fribourg Navigation Co. v. Commissioner, supra at 279-86; Udall v. Tallman, 380 U.S. 1, 16-18 (1965) ; United States v. Leslie Salt Co., 350 U.S. 383, 388-97 (1956). In the light of the ambiguity of section 911, that interpretation was clearly reasonable.
Plaintiff’s motion for summary judgment is granted, defendant’s motion is denied, and the case is remanded for further proceedings under Rule 131 (c) to determine the amount of plaintiff’s recovery, with any offset to which the defendant may be entitled taken into account.28