25 Pounds - Elizabeth II The Mary Rose

The Mary Rose sank in the Solent in July 1545, almost certainly due to water flooding through open gunports as the ship heeled during a turn — witnessed by Henry VIII himself from the shore. She lay on the seabed for 437 years before a salvage operation completed in 1982 brought up the surviving hull and over 19,000 artefacts, making it one of the most significant maritime archaeological recoveries in British history. Alderney, a Crown dependency with no direct connection to the wreck, issues coins largely as collector revenue instruments rather than circulating currency.