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The carrying bag is made of light canvas
Darling stated that the re-inforced collar on the 2nd ramrod guide is an invention of John Pratt
Fully Cleaned and Ready to display and research
showing normal In and Out marking from the runners but overall in a nearly Mint state
The grip is completely missing the leather and wire
Original U.S. WWII Sperry Aircraft Gunsight K-13 Compensating Sight 81mm Mortar The carrying bag is madeOriginal Item: Only One Available. The K 13 Compensating Gunsight, made by Sperry, is an electrically powered gunsight designed to compensate for altitude and airspeed. Typically mounted on the rear housing of a . 50 caliber machine gun from a side waist gunner position in the aircraft. Used in Boeing B 17 Flying Fortress and Consolidated B 24 Liberator bombers during WW2. It was a late war innovation that used the aircraft altitude and speed with the
