Dear Mr. Hallberg,
Thank you for posting your request on History Hub!
Might you be referring to the Accord between the United States, France, the United Kingdom, and Sweden relating to the liquidation of German property in Sweden, also known as the Allied-Sweden Accord of 1946?
We searched the National Archives Catalog and located Treaties and Other International Acts, 1942 - 1995 in the General Records of the United States Government (Record Group 11) that may have the record copies of this agreement. However, these records are specially protected and Researchers must obtain written permission to view the original records.
The English and French text of the agreement, which took the form of a series of notes exchanged by the parties, can be found in 61 Stat. (pt. 3) 3191. Information about the accord can also be found in The Department of State Bulletin, Vol. XVII, No. 421, Publication 2884, July 27, 1947. In addition to also including the text of the agreements, it includes an article by Seymour J. Rublin providing an overview and history of the agreement.
We also located a Department of State article on Allied Relations and Negotiations With Sweden that provides a history of negotiations and agreements between the Allies and Sweden during and after the war concerning war related issues, to include the previously mentioned accord. Many of the documents cited in this article, as well as other records relating to US-Sweden relations, are in the custody of the National Archives and located in the Records of the Department of State (Record Group 59), the General Records of the Department of the Treasury (Record Group 56), and the Records of the Foreign Economic Administration (Record Group 169). For access to these records, please contact the National Archives at College Park - Textual Reference (RDT2) via email at firstname.lastname@example.org.
For more information about National Archives records concerning the disposition of German assets and assets looted by Germany, to include those deposited by Germany in Sweden, please see our finding aid on Holocaust-Era Assets.
Swedish records concerning this accord and other aspects of Allied-Swedish relations may be in the custody of the Swedish National Archives.
We hope this information is helpful. Best of luck with your research!