delivered the opinion of the Court.
These are cross petitions based upon a suit brought against the Alien Property Custodian by Guinness and others, doing business under the firm.' name of Ladenburg, Thalmann & Co., in New York. The facts are not in ^dispute. A German firm, Joerger. and others doing business under the name of Delbriick, Schickler & Co., was indebted to the American firm under an account stated on December 31, 1916, for 1079.35 marks, subject to a setoff of $35.35. The debt was not paid when the war between Germany and the United States began, April 6, 1917. The Alien Property Custodian had taken property of the German firm of a value greater than the debt and the American firm brought this suit in equity to recover what was due to it, as provided by the Trading with the Enemy Act of October 6, 1917, c. 106, § 9; 40 Stat. 411, 419, amended by the Act of June 5, 1920, c. 241; 41 Stat. 977. The only questions raised and argued here are whether interest is to be allowed for the time covered by the war, from April 6, 1917, to July 14, 1919, and at what date the value of the mark is to be estimated in dollars in order to fix the amount of the decree. The District Court held that interest was suspended during the war, 291 Fed. Rep. 768, and that the value of the mark at the time when the debt.should have been paid was the proper measure. (This value is fixed as 17% cents.) 291 Fed. Rep; 769. The decree was affirmed by the Circuit Court of. Appeals. 299 Fed. Rep. 538. The Alien Property . Custodian in the interest of the German debtors seeks to reverse the latter ruling, in No. 80, and the American firm seeks to reverse the former ruling, in No. 81;
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We take up the second question first as the principles that govern it have some bearing upon the matter of interest also. We are of opinion that the Courts below were right in holding that the plaintiffs were entitled to recover the value in dollars that the mark had when the account was stated. The debt was due to an American creditor and was to be paid in the-United. States. When the contract was broken by a failure to pay, the American firm had a claim here, not for the debt, but, at its option, for damages in dollars. It no longer could be compelled to accept marks. It had a right to say to the debtors “ You are too late to perform what you have promised, and we want the dollars to which we have a right by the law here, in force.
Gould
v.
Banks,
The denial of. interest for the time covered by the war seems to us wrong. The cause of action had accrued before the war began,
Young
v.
Godbe,
No. 80, decree affirmed.
No. 81, decree reversed as to interest.
