Board of Governors of the Federal Reserve System (U.S.), 1935-
and Federal Reserve Board, 1914-1935. Report of Expense, Main Line, Federal Reserve Leased Wire System, June 1920, Number X-1981, Volume 13, Page 673,
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/511047, accessed on September 7, 2026.