Launched in 1815, HMS Cornwall was 74 gun Ship of the Line built for the Royal Navy at the end of the Napoleonic Wars.
She has the distinction of being the last British ship of the line to be sunk by enemy action and the only one to have been sunk by an air-raid.
This turned napkin ring measures 5 cm in diameter. The plaque is affixed to the front provides the attribution.
The Ship breaker sometimes made commemorative pieces of a ship from the salvaged timber. More often the pieces came from the larger WW1 battleships, but less frequently they are also found from other British Naval ships. Pieces from last of the wooden hulled sailing ships are harder to find,