Gyro Magnetic Compass & Course Indicator Slaved Type V-4 Sperry 21204 USAF OCAMA Peggy Bomber The glass is loose and

The glass is loose and appears to need a new gasket

Here is a WW2-era German Airspeed Indicator FI

shows a (+) positive reading indicating the current is flowing to the battery (charge)

25 inches diameter and ~2 inches deep

Gyro Magnetic Compass & Course Indicator Slaved Type V-4 Sperry 21204 USAF OCAMA Peggy Bomber The glass is loose andThis 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