Mark V United States Navy Diving Helmet by SchradersBoston Harbor Auctions 4.4(55)$2,500(1 bid)Apr 12, 2026
REPLICA COPPER & BRASS U.S. NAVY MARK V MODEL DIVING HELMETAustin Auction Gallery4.7(1.2k)$150Mar 28, 2026
Mark V U.S Navy Deep Sea Diving Helmet Antique Style Steel & Aluminum ReproductionChairish Auctions4.5(10.4k)$180
Mark V US Navy Style Diving Helmet 18" Full Size Antique Copper Finish CollectibleChairish Auctions4.5(10.4k)$400(1 bid)
