Original, Rare WW2 German Luftwaffe 0-345 L Elek. Vorrats-Anzeiger (Electrical Fuel Gauge) Fl.20723. Used in the Gotha Go.244 series aircrafts.
This instrument was mounted on the forward instrument panel and indicated the current Fuel Capacity of the main tanks. This is a late-war version, and made for the Gotha Go 244.