Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of application of First Chicago Corporation, through subsidiary, First Chicago Cheque Corporation, to engage in the issuance and sale of travelers checks" in Press Releases of the Board of Governors of the Federal Reserve System
(October 29, 1979).
https://fraser.stlouisfed.org/title/9237/item/694833, accessed on January 20, 2026.