Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. Copy of Letter From the Chairman of the Committee on Economy and Efficiency to Governors of Federal Reserve Banks re Economy and Efficiency in Federal Reserve Banks, Number X-3489, Volume 17, Page 938, 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/511801, accessed on May 19, 2026.