Ammeter Strommesser -120 to 0 to +120 Amps Luftwaffe Fl32509-3 B-47 and the face itself is

and the face itself is large enough to permit accurate course-holding to within extremely small limits

while slightly dark

As the brace is pulled by the centrifugal force of the weights

This blueprint appears to be a reduction of the General Arrangement master blueprint showing views and dimensions of the front

introduced in the late 1940's

Ammeter Strommesser -120 to 0 to +120 Amps Luftwaffe Fl32509-3 B-47 and the face itself isThis is a WWII era aircraft Ammeter (Strommesser) Fl 325509 3 measuring current from 120 to 0 to +120 amps, as used in aircraft of the German Luftwaffe. It is new old stock in its original box. It is 1 3 4" diameter, and 1 3 4" deep mounted in a black, steel cylinder by two small slotted screws. It has a movable pointer to indicate the current in an electrical circuit. There is a "0" above an "A" at center position. Stamped in white to the black