Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "United States Certificates of Indebtedness: Volume Purchased in Open Market," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "1924," Annual Report of the Board of Governors of the Federal Reserve System (1924) : 106-106. https://fraser.stlouisfed.org/title/117/item/2482/toc/140243 , accessed on March 28, 2024.