This is an excellent condition example of the Luftwaffe Flieger-Leuchtpistole L or Aviators Flare Gun L. These double-barreled, 26.5mm (4 Bore) signal pistols were issued to Luftwaffe aircrews in order to give them a method of communication that did not rely on their radio transmitters.

This pistol is marked with the maker code fzs, the code assigned to the extremely famous Krieghoff firearms company Ulm, Germany. The ordnance code is located under the date 1942 to the rear of the safety lever on the left side of the frame. The tops of the barrels are both marked with a 4 in a circle (4-Bore) over the Luftwaffe Stick Eagle acceptance mark. This same proof appears on the rear of the receiver between the L and R barrel selector marks, and is covered when the selector switch is in the middle or "both barrels" position.  LM24483