Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. Form 44-a. Federal Reserve Notes Outstanding and Funds Held as Security for Same, Also Gold Held by Treasurer of U. S. for Redemption of Notes, Number X-293, Volume 6, Page 2633, 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/510675, accessed on April 16, 2026.