Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. Interpretation of Law or Regulation: Replacement of Exempted Securities with Registered Nonexempted Securities Could Not Be Permitted Without Additional Collateral, Number S-43, Volume 47, Page 482, 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/506902, accessed on March 1, 2026.