1 Crown - Elizabeth II Coronation

Tristan da Cunha, a British Overseas Territory in the South Atlantic with a permanent population of fewer than 300, has issued commemorative crowns since the 1970s largely as revenue-generating products for the collector market rather than instruments of genuine circulation. This 2014 piece marks the 61st anniversary of the 1953 Coronation — an odd interval that reflects scheduling around the Diamond Jubilee coinage cycle rather than any numerically significant milestone.

The .9999 gold plating over copper-nickel is a finishing technique that became widespread in the souvenir numismatic trade after the 1990s.