Radiological Survey Meter (Geiger Counter) CDV-715 Model 1A F9F Panther This is an original WWII-era

This is an original WWII-era Course and Speed Calculator Mk II as used by aviators of the British RAF in its wooden case

It is essentially a flight computer as it provides the navigator with the integral calculators for heading

a small pointer which travels the perimeter of the compass card

WWII-era US Navy Douglas SBC Dive Bombers as well as early 'birdcage' versions of the Vought F4U-1 Corsair Fighter

shows evidence of this clock having been through NAS (Naval Air Station) Norfolk (VA)

Radiological Survey Meter (Geiger Counter) CDV-715 Model 1A F9F Panther This is an original WWII-eraHere is an authentic Geiger Counter as used by the US Civil Defense, plus original instructions. Operational condition accuracy is unknown. With a D cell battery installed, the meter needle activates when switched on.