In 1975 the Franklin Mint on behalf of Panama released a very Limited Issue 20 Twenty Balboa Silver Proof Coin struck in solid .925 Sterling Silver first issued in 1971 and was the largest legal tender Silver coin in the world.
The reverse is the portrait of Simon Bolivar while obverse is the Coat of Arms of Panama. These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.
