Holley Aircraft Carburetors, Slide Film Review Book April 1943 F4U Corsair this indicator was used in

this indicator was used in the twin-engine Bristol Beaufighter

This is an authentic confidential WWII-era Intelligence Summary

Measure 6 inches by 4

The indicator has labels showing service at US Naval Air Station Pensacola in January 1955 (see white label on side and blue stamp on back)

The Gyro Horizon provided visual cues to the pilot regarding the attitude of the aircraft

Holley Aircraft Carburetors, Slide Film Review Book April 1943 F4U Corsair this indicator was used inThis is an original 96 page book published in 1943 by the Holley Carburetor Company to accompany a set of 11 slide shows explaining the theory of operation, installation, overhaul, maintenance, and the test stand for Holley Aircraft carburetors. Inside each page illustrates 9 black and white slides of each slide show including the accompanying text for each slide. Its in exceptional condition given its age.