10 francs Stendhal Piéfort platine

Piéforts from the Monnaie de Paris in the early 1980s were issued in platinum almost as an afterthought — the silver piéforts in this commemorative series drove the program, with platinum strikes produced in quantities so small they were sold almost exclusively to institutional collectors and foreign buyers. The Stendhal issue honored the bicentennial of the novelist's birth in Grenoble in 1783.

Mintage figures for this platinum strike are not independently verified across standard references, which itself tells you something about how narrowly it circulated within the collector market.