Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Kinds Outstanding and in Circulation," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "April 1964," Federal Reserve Bulletin (April 1964) : 39-39. https://fraser.stlouisfed.org/title/62/item/21352/toc/415028 , accessed on April 18, 2024.