10 Francs Sobek

Burundi has no meaningful connection to Sobek, the ancient Egyptian crocodile deity. This is a bullion-adjacent novelty issue in the now-crowded market of sub-Saharan nations licensing their minting authority to European distributors — primarily Scottsdale Mint and B.H. Mayer's — who produce themed collector coins under nominal African sovereignty for Western buyers. The Banque de la République du Burundi has issued dozens of such pieces since the early 2010s, none intended for domestic circulation.

At 0.311 g of .9999 gold, the metal content is the only durable value here.