Original U.S. WWII Sperry Aircraft Gunsight K-13 Compensating Sight Spanish Flags but the age and look

but the age and look they acquire is something special in its own right

The six surviving tanks arrived at the main gate at 10:00 and began their attack

It 's stock is walnut

For the next several months

• Leather thong flywhisk

Original U.S. WWII Sperry Aircraft Gunsight K-13 Compensating Sight Spanish Flags but the age and lookOriginal 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