Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. Letter From Secretary Morrill re Correspondence with Secretary of Treasury Regarding Replacement of 1928 Series with 1934 Series of Federal Reserve Notes, Number X-9452, Volume 44, Page 137, 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/506221, accessed on March 13, 2026.