delivered the opinion of the court:
In this government contract case, the court is being asked by cross motions for summary judgment to review a decision1 of the Armed Services Board of Contract Appeals (the Board) pursuant to the Wunderlich Act, 41 U.S.C. §§ 321-22 (1970).
*25The issue ’for consideration is whether‘fhe confráótoF is entitled to damages for work’done outside óf 4h admittedly misdrawn /‘contract limit' line’*, Fop the .reasons ¡that follow.; we hold that the ■prai'btiff-contrlictdf is not entitled ¡to recover as a matter of taw.2 . .¡ ,.,i. .
The contract in issue, No. DA44-110-(EN;Gy6020, was for the construction of ah /,‘É.‘*W. SarracKs” *Compléx'at Fort Myer, Virginia. The Invitation for Bids (ÍFB) Was issued on December 3, 1965. ¡Since the1 drawings accompanying the IFB package displayed areas outsi.de the contract work zóiie, the drawings contained the usual “contractlimit'line” 'within which the contract work was to be performed. Prior to bid opening, on February 16, 1966, the original’ÍFB’package was amended seven times.
Amendments Nos. 2 and 4 cover the worki which is the sub-r ject of this appeal. No. 2 revised certain drawings.'which depicted the Water 'and S anitary Sewer Plan and, tlie Steam Distribution Plan. This was designated on the,drawings as ¡Revision “b”. Inside of the contract limit line wás' a boiler building, Building No. 66, which was tp' be demolished pursuant to the contract. It supplied heat to’ buildings, shown on the drawings, but which were outside'óf the work zóiie, The revisions encompassed' in Amendment No. 2 incorporated changes necessary to supply heat to" thepe other buildings once No. 66 was demolished. Some of the changes” required pipe work outside of the contract limit line', On the revised drawings, an irregular circle (not a contract limit line)' had •been specially drawn outlining and calling attention ,to all of the new work to be done. This new íiné clearly showed that some of the work was outside of the. contract limit line. Ideally, the limit line should have been moved by the defendr ant .to include this new work. 'Such was not done. Amendment No. 4 similarly modified earlier plans ¡and’ also referred' to items 'both inside ¡and outside of the contract limit line.'
Plaintiff then submitted a bid including estimated costs for the new work but ignoring costs for work outside-of the limit *26line, and was awarded the contract. Sometime thereafter plaintiff inquired with reference to the additional work outside of the contract limit line. The Contracting Officer’s Representative replied that this work had been added to the contract prior to bidding by Revision “b” under Amendment No. 2.
Plaintiff sought additional compensation for the disputed work. The claim was denied by the Contracting Officer’s Representative. A timely appeal was made to the Board which held that the additional work outside of the contract limit line as depicted in Revision “b” of Amendment No. 2 was part of the contract, and plaintiff was not entitled to additional compensation. Plaintiff accordingly filed a petition in this court on October 20,1971.
Plaintiff contends that the Board erred as a matter of law in finding that the additional work (outside of the contract limit line) was to be included under the contract as executed by the parties. It is undisputed that the Board’s conclusion is not final and binding on this court since it involves contract interpretation which is a question of law. International Telephone and Telegraph v. United States, 197 Ct. Cl. 11, 20, 453 F. 2d 1283, 1288 (1972); HRH Constr. Corp. v. United States, 192 Ct. Cl. 912, 918, 428 F. 2d 1267, 1271 (1970); Paschen Contractors, Inc. v. United States, 190 Ct. Cl. 177, 180, 418 F. 2d 1360, 1361 (1969).
Plaintiff interpreted the notations on the drawings concerning the additional work as merely “informational”, i.e. the notations were for coordination purposes between the plaintiff and the other contractors who plaintiff thought would be doing the additional work. Plaintiff, feeling that this was a reasonable interpretation, would have this court invoke the contra proferentem rule3 Whether or not this was a reasonable interpretation is not material, because the discrepancy in this case created more than a mere ambiguity; *27it evidenced an obvious omission on tbe part of the government. This imposed upon tbe contractor a duty to inquire if be intended to benefit from bis interpretation in the future. Space Corp. v. United States, 200 Ct. Cl. 1, 5, 470 F. 2d 536, 539 (1972); Allied Contractors, Inc. v. United States, 180 Ct. Cl. 1057, 1064, 381 F. 2d 995, 1000 (1967); Beacon Constr. Co. v. United States, 161 Ct. Cl. 1, 7, 314 F. 2d 501, 504 (1963).
Prior -to submission of its bid, plaintiff received the revised drawings which reflected the new work without altering the contract limit line. Plaintiff also received additional detailed drawings which described only the work outside of the limit line. There would have been no reason for the government to send these detailed drawings if the contractor was not meant to include this additional work when submitting its bid. This knowledgeable and experienced contractor should also have known that it was unlikely that the government specifications would have required laying pipe to an imaginary point without any instructions as to capping or connections. This would have been the result if plaintiff’s interpretation were accepted.
Faced with the patently obvious discrepancy between the placement of the contract limit line and the additional work, plaintiff should have inquired. This pre-bid inquiry would have clarified the situation and allowed the contractor to bid in accordance with the requirements of the contract.
In light of the above, the plaintiff is not entitled to recover damages from the government for work which was outside of the contract limit line. Although it was the government’s error in not altering the limit line, the error was or should have been obvious to the contractor thus necessitating pre-bid inquiry to clarify the discrepancy. Having failed to seek clarification, the plaintiff is now barred from recovering on its claim.
Accordingly, we find that the Board’s opinion withstands a Wunderlich Aot review. The plaintiff’s motion for summary judgment is denied; the defendant’s cross-motion for summary judgment is granted; and the petition is hereby dismissed.
Mérmelo, Ino., 69-2 BCA ¶7946.
Only the question of entitlement Is before the .court, the parties having stipulates to leave the question of quantum for further proceedings. It was also agreed that the contractor’s claim for damages due to delays Is, properly pertinent to the question of quantum and -would therefore be postponed until that matter should be reached.
As tills court has mentioned oiten, If a discrepancy In contract language creates an ambiguity, and If the contractor’s Interpretation falls within the zone of reasonableness, the ambiguity will be construed against the government as the author of the ambiguous document. Brezina Constr. Co., Inc. v. United States, 196 Ct. Cl. 29, 33', 449 F. 2d 372, 375 (1971) ; Corn Corp. v. United States, 191 Ct. Cl. 560, 567, 424 F. 2d 588, 592 (1970) ; Peter Kiewit Sons’ Co. v. United States, 109 Ct. Cl. 390, 418 (1947).