500 Francs CFA Australia Bottle Cap

Chad's BEAC membership technically restricts independent coinage authority, yet the country has carved out a prolific novelty bullion program through licensing arrangements that operate in a gray zone of that framework. This piece is part of a series targeting thematic collectors rather than circulation — the bottle cap shape is achieved through a minting process that crimps the edge die to replicate the crown finish, a technique first commercialized by the Mayer Mint in Munich for similar novelty issues.