20 Lire Prova

San Marino struck gold coinage under a Latin Monetary Union framework, but the 1925 20 Lire Prova occupies a peculiar position — pattern pieces of this type were produced in extremely limited numbers, almost certainly never intended for general circulation. The tiny republic's relationship with Italian monetary authority meant that its gold issues were as much diplomatic gestures as functional currency.

Prova strikes from San Marino in this period are documented in a handful of major collections; the precise number confirmed to exist remains disputed among specialists.