Board of Governors of the Federal Reserve System (U.S.), 1935-
and Federal Reserve Board, 1914-1935. Letter From Asst. Secretary Noell re Code Word Covering Notification of Receipt of Unfit Federal Reserve Notes for Redemption, Number X-6351, Volume 31, Page 45,
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/503791, accessed on February 28, 2026.