1766 Francs UFO MP 1766

The Bank of Central African States has issued commemorative silver in increasingly elaborate formats over the past decade, but the "UFO" designation here refers to the coin's unconventional concave disc form — a shape borrowed from German mint technology first deployed commercially in the early 2010s. The six member states of the BEAC monetary zone (Cameroon, CAR, Chad, Congo, Gabon, Equatorial Guinea) collectively authorize these issues, though none circulate domestically.

At 217.7 grams of .999 silver, this is a bullion-weight piece dressed as a numismatic novelty. The francs CFA franc zone itself dates to 1945, pegged originally to the French franc and now to the euro at a fixed rate of 655.957 CFA francs per euro — a peg unchanged since 1999.