Board of Governors of the Federal Reserve System (U.S.), 1935-
and Federal Reserve Board, 1914-1935. Statement for the Press re Substitutions of Unregistered, Non-exempted Securities in Old Accounts by Sale and Purchase of Such Securities: Ruling No. 37 Interpreting Regulation T, Number X-9019, Volume 41, Page 343,
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/505710, accessed on March 9, 2026.