Ammeter, 100mA, WWII Japanese Navy Aircraft S2 Tracker You may encounter an Astrograph

You may encounter an Astrograph among collectors

Here is a capacitance-type Fuel Quantity Indicator displaying aircraft fuel quantity up to 5400 lbs

It is in very nice condition given its age

25 inches square by ~7

Ammeter, 100mA, WWII Japanese Navy Aircraft S2 Tracker You may encounter an AstrographThis is a Japanese Ammeter, 100mA. It is presumed to be a WWII era indicator used in aircraft of the Japanese Navy judging from the anchor symbol on its face (lower left, below pointer). This has not been verified. Aircraft that may have used this have not yet been identified. It is in good condition given its age. Measures 2. 5 inches diameter and ~1. 5 inches deep. The glass and case are intact and the lettering is distinct.