USA Navy POLARIS NUCLEAR SUBMARINE BRASS Tampion Plaque Crest Shield Plaque I recently bought a huge collection of metal Ships Crests , Tompians and Plaques. They had been removed from the ward room of a ship being broken up at Southampton and had been collected during her service on the high seas. This Plaque / Crest / Tampion is made of solid brass and measures nearly 8" X 7"".