Board of Governors of the Federal Reserve System (U.S.), 1935-
and Federal Reserve Board, 1914-1935. Letter From Governor, to Chairmen, Federal Reserve Banks, April 30, 1918, re Engraving of Additional Plates for Printing Federal Reserve Notes, Number X-911, Volume 7, Page 508,
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/512012, accessed on March 7, 2026.