2 Pounds - Charles III Edinburgh Castle, Silver Proof

Edinburgh Castle sits on a volcanic plug formed roughly 350 million years ago, and its use as a royal fortress dates to at least the 12th century — though the Isle of Man has no historical jurisdiction over it whatsoever. The Manx government has long issued coins depicting British landmarks and themes as a commercial strategy, producing numismatic items primarily for the collector market rather than circulation.

The bi-metallic silver-and-gold-plate construction places this squarely in the modern proof bullion souvenir category.