U. S Navy Copper Brass Diving Divers Helmet Solid Heavy Model Mark V 18 P216 May 23, 2021 navy Premium quality well made deep sea divers helmet replica. Metal : Solid Copper, brass. Finish: Polish Finish as shown in Picture. Approx Size: 16″ x 12.5″ x 17 / 40 x 32 x 42cm. Weight: 9....