Gyro Magnetic Compass & Course Indicator Slaved Type V-4 Sperry 21204 USAF OCAMA Peggy Bomber 25 inches diameter and ~2

25 inches diameter and ~2 inches deep

5 inches diameter and 2

Here is a WW2-era German Airspeed Indicator FI

It has a detector unit

for example by change of wind direction or surprise enemy action

Gyro Magnetic Compass & Course Indicator Slaved Type V-4 Sperry 21204 USAF OCAMA Peggy Bomber 25 inches diameter and ~2This is a Slaved Gyro Magnetic Compass and Course Indicator Type V 4 made by Sperry spec # 21204. It has a service label from the US Air Force Tinker Air Base's OCAMA (Oklahoma City Air Materiel Area). OCAMA managed repairs and furnished spare parts for the B 52, B 47, C KC 135, and certain other aircraft, but a specific link between this instrument and these aircraft has not been established. It has a serial # prefix of AF 50, likely indicating a