WWII German U-Boat War Badge (U-Boot Kriegabzeichen), by Friedrich Orth-The U-Boat badge was introduced in October of 1939, and came in one version only: Gold. They were often presented by the Submarine Commanders, and could be awarded to all Officers, NCO’s, and Crew Members who serve on submarines directed against the enemy. Qualification of the award was that an individual had to prove themselves on two or more sorties. If a wound was sustained during a sortie, the Commander could waive the number requirement. Once awarded, it was to be worn, during duty or off-duty hours, on the service jacket, blue and white jacket, mess jacket or pullover jacket. This zinc example retains 50% of its original gilt finish, with minor visible wear. The details of the badge really stand out! The reverse has a horizontal, tapered pin which is scarce on some makers but fairly common to this one. The hinge is a rugged barrel type. The catch is question mark shaped, produced in round wire and soldered directly to the reverse of the badge. The pin is a little stiff and I didn't want to force it open. It opens about halfway, plenty enough to get it on a uniform. The makers initials, "f.o." are seen on the back of the sub. This indicates it was produced by Friedrich Orth of Vienna. A desirable example!