For sale is a Russian 3-bolts hardhat diving helmet made out of copper and brass. The helmet is in unused, mint condition.It's manufactured in St.Petersburg beg. of 90's and has been a sparehelmet for divers at a shipyard in Russia. Asking £510 + shipping & insurance to UK starting from £46. Helmet located in Finland (i.e. no VAT and custom charges when shipped within EU). Drop me a mail for more information and pics.