Radiological Survey Meter (Geiger Counter) CDV-715 Model 1A F9F Panther mso-ansi-language:#0400

mso-ansi-language:#0400

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

The knob rotates the barometric pressure adjustment

the position of a graduated card attached to the float is visible through a glass cover in the front of the bowl

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

Radiological Survey Meter (Geiger Counter) CDV-715 Model 1A F9F Panther mso-ansi-language:#0400Here 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.