1/2 Sovereign - Elizabeth II 65th Ann. Coronation

Alderney has long served as a vehicle for Royal Mint-adjacent commemorative issues that technically fall outside standard British coinage but trade on its prestige. The 65th coronation anniversary is an awkward milestone — not a round number, chosen specifically because Elizabeth II had by 2018 surpassed Queen Victoria's reign length, making 65 years the de facto new benchmark the commemorative industry latched onto.