Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. Interpretation of Law or Regulation: Necessity for Reserves Against Advance Payments on Government Bonds, Number X-9770, Volume 45, Page 320, 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/506550, accessed on March 9, 2026.