5 Pounds - Elizabeth II Queen's 80th birthday, Gold Proof issue

Jersey's gold proof commemoratives from this period were struck by the Royal Mint under contract, as the island's own minting infrastructure has never existed independently. The Queen's 80th birthday in April 2006 prompted a wave of issues across Crown Dependencies, but Jersey's gold proof carried one of the higher face values in the series relative to its bullion content — a pricing structure that reflects collector premium rather than any monetary function, since pieces like this were never intended to circulate.