Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Volume of Bills Bought in Open Market During Each Month, by Classes," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "1923," Annual Report of the Board of Governors of the Federal Reserve System (1923) : 159-159. https://fraser.stlouisfed.org/title/117/item/2481/toc/352852 , accessed on April 25, 2024.