Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. Letter From Asst. Secretary McClelland re Transmission of Messages Over the Main Line Leased Wire System for Account of Regional Agricultural Credit Corporations, Number X-7301, Volume 37, Page 509, 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/504875, accessed on October 15, 2026.