Not used - in talc - operability not tested. Weight about 10 000 gramm (10 kg).The item "WW vintage Diving Helmet apparatus Special Forces tankman Military USSR Maritime" is in sale since Monday, March 23, 2020. This item is in the category "Antiques\Maritime\Diving Helmets". The seller is "galochka-4" and is located in Europe. This item can be shipped worldwide.