Board of Governors of the Federal Reserve System (U.S.), 1935-. "Agencies announce that the issuance of currency in denominations of 500, 1,000, 5,000, and 10,000 dollars will be discontinued immediately" in Press Releases of the Board of Governors of the Federal Reserve System
(July 14, 1969).
https://fraser.stlouisfed.org/title/9237/item/697822, accessed on January 13, 2026.