Board of Governors of the Federal Reserve System (U.S.), 1935-. "Approval of application of Standard Chartered PLC to engage through Mocatta Metals Corporation in the purchase and sale of platinum coins" in Press Releases of the Board of Governors of the Federal Reserve System
(June 25, 1990).
https://fraser.stlouisfed.org/title/9237/item/691806, accessed on January 24, 2026.