Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. Letter From Secretary Morrill re Depreciation in Securities Held by Member Banks, Number X-7944, Volume 40, Page 401, 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/505522, accessed on October 14, 2026.