Original U.S. WWII Sperry Aircraft Gunsight K-13 Compensating Sight Japanese Edged Weapons They then turned to the

They then turned to the task of aiding the rescue of the Czech Legion

30 cents a quart

for Erfurter Maschinenfabrik

The other side of the blade ricasso is marked:

still comes with with original wax paper wrapping

Original U.S. WWII Sperry Aircraft Gunsight K-13 Compensating Sight Japanese Edged Weapons They then turned to theOriginal 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