Radiological Survey Meter (Geiger Counter) CDV-715 Model 1A F9F Panther WWII-era US Navy Douglas SBC

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

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

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

a small pointer which travels the perimeter of the compass card

The Type 92 was primarily used in aircraft such as the Mitsubishi A6M5 Zero fighter

Radiological Survey Meter (Geiger Counter) CDV-715 Model 1A F9F Panther WWII-era US Navy Douglas SBCHere 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.