Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. Letter From Asst. Secretary Carpenter re Code Covering Operations of Radio Stations, Issued by Office of Censorship, Number R-951, Volume 56, Page 19, 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/509726, accessed on March 13, 2026.