Flügger Antikblå (U-572) / #637289 Hex Color Code, RGB and Paints
File:U 1 Kriegsmarine.jpg - Wikimedia Commons
4)U 572 - U-518 U-863 - U BOATS IN ACTION SOUTH ATLANTIC - Articles - Sixtant - War II in the South Atlantic
German WWI U-boat found off Belgium with 23 bodies inside
800 x 572]HMS Explorer, an experimental submarine. Nicknamed 'Exploder' because of frequent incidents, was powered by a hydrogen peroxide power plant. Circa late 1950's : r/WarshipPorn