Metal Usage: Copper & Brass. Color / Finish : Polish Finish As Shown as picture Weight : 18.0 kg (approx). Volume Weight: 25.0 kg.Top head measurements: 18" x 16" x 18 / 45cm x 40cm x 45cm. Model : US Navy Mark V- 12 Bolt- Heavy Piece. The item "Only One Copper & Brass U. S Navy Mark V Originally Made Diving Divers Helmet" is in sale since Thursday, November 4, 2021. This item is in the category "Antiques\Maritime\Diving Helmets". The seller is "medievalmart2020" and is located in Lakewood, New Jersey. This item can be shipped worldwide.