Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Circulation of Federal Reserve Notes," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "December 1915," Federal Reserve Bulletin (December 1915) : 41-42. https://fraser.stlouisfed.org/title/62/item/21077/toc/322739 , accessed on April 24, 2024.