20 Lire Solidarity

San Marino issued several small-denomination aluminium bronze pieces in 2000 under the broad "Solidarity" theme, a series reflecting the republic's longstanding practice of using annual coinage programs to address humanitarian or civic subjects. It was among the last lire-denominated issues before San Marino, alongside Italy, irrevocably fixed its currency to the euro in January 1999 and began the transition to euro coinage — meaning this piece circulated, if at all, during a monetary twilight period when the lire was already legally terminal.