5000 Francs CFA Earth puzzle

Chad's issuing authority has produced a run of oversized puzzle-format pieces over the past decade, typically marketed through European distributors rather than circulated domestically — the CFA franc zone means Chad has no independent monetary policy, and these coins exist purely as collector revenue vehicles sanctioned under BEAC arrangements. KM#166 sits in a crowded field of similar puzzle issues from African nations whose numismatic programs are effectively licensed out to private minting and marketing firms.