vintageVintage 18 Inch Diving Helmet Us Navy Mark V Original Antique Divers Helmet Metal : Iron & Aluminum And Steel. Finish: Finish as shown in Picture. Size: 16″ x 12.5″ x 17 / 40 x 32 x 42cm. Weight: 7.5 Kg. Packing : Packing In Single Parcels. Standard