5 Kopecks

Transnistria's coinage exists because the territory declared independence from Moldova in 1990, a separation never recognized by any UN member state. The Russian-backed breakaway strip along the Dniester River operates its own central bank, issues its own currency, and has done so with remarkable consistency for three decades — producing coins that are simultaneously legal tender within a functioning economy and, technically, the currency of a country that does not exist.