Gun Camera, 16mm, Gun Sight Aiming Point, Type M-4A US Navy USSR We have not independently verified

We have not independently verified the information on the tag

Weston model 301

This is a fine example of an WWII-era Suction Gage

according to the US Air Service Command's Airborne Radio Equipment Handbook dated 1943

Gun Camera, 16mm, Gun Sight Aiming Point, Type M-4A US Navy USSR We have not independently verifiedGun Sight Aiming Point (GSAP) Cameras are electrically operated motion picture cameras which were used across US Army Air Force and US Navy fighter and attack aircraft during WWII and the Korean War. These cameras were designed to record results obtained in aerial and ground gunnery training and for producing visual records of aerial combat. By the end of WWII, the AN N6 GSAP cameras were the standard for this application. This example, the M 4 camera