Original 1970s Bronze Divers Helmet Deep Sea Diving Antique Sunken Treasure

Bronze dive helmet, Korean, 1970s(?). About 34 lb, 14" in diameter and 17" tall. Bronze dive helmets, for deep-sea diving using surface-supplied air and de-pressurization, became iconic in the early 1900s, especially for treasure diving, but they are still used today around the world. This complete example consists of a smooth-top bonnet with 3 glass windows ringed with brass (the two side windows with crosshatch grills) and with brass relief-valve in side and intake bib in back, screwed into a yoke-like brass-ringed collar with 2 pegs in front and 12 wing-nut fasteners around the perimeter. The bronze and brass surfaces are clean and smooth (the top a bit worn and coppery), but the inside has a light veneer of patina. Great for a nautical display