Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. Letter From Asst. Secretary Bethea re Copy of Proposed Amendment No. 10 to Regulation W Proposed, Relating to Preservation of Records and Papers, Sent to Federal Reserve Banks and Views and Comments Requested, Number S-580, Volume 57, Page 145, 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/509924, accessed on September 9, 2026.