5000 Francs Mandarinfish

Burundi has no coastline and no native mandarinfish — the species is indigenous to the Pacific Ocean. This coin belongs to a wave of exotic wildlife issues produced for Burundi by the Mayer Mint in Germany beginning around 2013, targeting the European collector market rather than domestic circulation. The series had no monetary function in Burundi and the face values printed on them bear no relationship to actual purchasing power in the country.

Silver-plated copper-nickel rather than solid silver — a detail worth noting given the series' positioning alongside genuine precious-metal issues in secondary market listings.