Fuel Quantity Indicator, C-69 Lockheed Constellation, Tanks 3&4,EA155AN-B-3
Here is a Fuel Quantity Indicator, Liquidometer part number EA155AN-B3 as illustrated on in the US Army Air Force's Flight Manual, dated July 1945, for the Lockheed C-69 Transport, aka Constellation (see photo). Appearing on the instrument panel of the Engineers station, it is marked for fuel tanks 3 and 4. Measures 3.25in diameter and ~4in deep.
It is in nice condition given its age. The dial markings are clear and the glass and case are intact. See photos.