1 Crown - Elizabeth II Celebrations in the Streets

Tristan da Cunha, a British Overseas Territory in the South Atlantic with a permanent population that has never exceeded 300, issues commemorative coinage through the Pobjoy Mint under Crown authority. These pieces circulate in name only — the island's economy runs almost entirely on fishing licenses and philatelic sales, and coins of this type are produced exclusively for the collector market.

The 2015 date ties this piece to Elizabeth II's longest-reign milestone, surpassing Queen Victoria on September 9th of that year.