Board of Governors of the Federal Reserve System (U.S.), 1935-
and Federal Reserve Board, 1914-1935. Letter From Secretary Morrill re Extension of Period During Which Direct Obligations of the United States May Be Offered and Accepted as Collateral Security for Federal Reserve Notes, Number X-9135, Volume 42, Page 193,
Mimeograph Letters and Statements of the Board.
Board of Governors of the Federal Reserve System (U.S.), 1935-.
https://fraser.stlouisfed.org/archival/4957/item/505866, accessed on September 13, 2026.