United States. Congress. House. Committee on Banking and Currency, 1865-1974. To Extend the Period During Which Direct Obligations of the United States May be Used as Collateral Security for Federal Reserve Notes : Hearings Before the Committee on Banking and Currency, House of Representatives... February 16, 18, 1937, Box 63, Folder 6, Item 9, Marriner S. Eccles Papers. https://fraser.stlouisfed.org/archival/1343/item/463599, accessed on May 22, 2025.