Exhaust Pressure Differential Gauge, Fl20515, Luftwaffe F8F This is a dual DC

This is a dual DC Ammeter

dated November 1962 with updates as of April 1966

Stores Reference 6A/827 GE Type DJ4

Our Google Translate app interpreted the date on the label as Showa 11

The case is in fine shape for its age

Exhaust Pressure Differential Gauge, Fl20515, Luftwaffe F8F This is a dual DCThis is a WWII era Exhaust Differential Pressure Gauge, Fl20515, as used in aircraft of the German Luftwaffe such as jet fighters Me 262 Schwalbe (see illustration of Me 262 cockpit panel showing the location of 2 indicators) and He 162 Volksjger. The gauge indicates pressure differential up to 1 kg per square cm. The indicator is in very good condition given its age. Measures ~2. 25 inches diameter and ~3 inches deep.