Check the listing for details. WWII German Kriegsmarine engine specialist patch. Condition: Used. Listed at 15.00 USD. The WWII German Kriegsmarine engine specialist patch is an original period item from World War II, specifically from Germany. This militaria collectible reflects the theme of the conflict and showcases the expertise of the German military in engineering and maintenance during that time. The patch serves as a unique and historical piece of memorabilia from the era, making it a valuable addition to any military history collection.