Check the listing for details. WW2 German Navy Petty Officer (Mine Tec.) Obermaat. Condition: Used. Listed at 27.97 USD. The product is an original WW2 German Navy Petty Officer (Mine Tec.) Obermaat, a military collectible from Germany during the time of World War II. This item is a piece of militaria history, specifically related to the German Navy's mining technology. As an original period item, it holds historical significance and is a valuable addition to any collection focusing on WW II memorabilia. The Obermaat rank indicates a level of authority and responsibility within the navy, making this item a unique and sought-after piece for collectors interested in military history.