Astrograph Kit with Star Charts, Type A-1, Kodak, WWII Navigator's Tool HH-3 Helicopter but the outdated cord has

but the outdated cord has been removed for safety

revealing the gyro mechanism itself

Directional Gyro Indicator

likely from the 1950's and used in US Navy aircraft judging from the blue/green of some of its lettering and the presence of a USN stock # (R88-I) etched on the top edge of the case

It consists of a white plastic planisphere with the northern sky on one side and the southern on the other that shows all the stars in the American and the British Air Almanacs

Astrograph Kit with Star Charts, Type A-1, Kodak, WWII Navigator's Tool HH-3 Helicopter but the outdated cord hasHere is a complete WWII era Astrograph, Type A 1, make by Eastman Kodak. This instrument was used in aircraft with a navigator crewman as an aid to determine the position and course of the aircraft during nighttime flying using celestial navigation. The black projector was installed above a map table at the navigators station at the height specified by the height gauge included in the kit. The star chart for the intended course of the aircraft was