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Diving Helmet

U.S. Navy Mark V mixed gas diving helmet
Auctions

Diving Danger for Sale

By Antique Trader StaffMar 2, 2021
A 19th century Alfred Hale diving helmet sold for nearly $13,000 at auction.
Collectibles

Rare Alfred Hale Diving Helmet Highlights Auction

By Paul KennedyDec 17, 2019