10 Francs Euro 2004, Portugal

The Democratic Republic of Congo has issued a long and well-documented series of novelty legal tender pieces aimed squarely at the collector market rather than circulation — this "10 Francs Euro" type being a characteristic example. The denomination and "Euro" branding have no relationship to Portugal's actual currency or the European monetary system; the coin is a souvenir issue capitalizing on Euro-transition collector interest, struck in silver-plated copper-nickel for the overseas numismatic trade.

KM# 85 falls within a cluster of similar Congolese issues from the early 2000s, many sharing the same planchet specifications across different "Euro" themed reverses tied to various European nations.