Fuel Quantity Indicator, B-47B Center Main Tank, Minneapolis-Honeywell JG7021A22 Seagull so it very well could

so it very well could have appeared in a USMC aircraft

The tag also reads J

This one was converted to AC at some point during its history

It has a manufacturing date of Aug 1956 stamped on its side

25 inches diameter and 9 inches deep

Fuel Quantity Indicator, B-47B Center Main Tank, Minneapolis-Honeywell JG7021A22 Seagull so it very well couldHere is a Fuel Quantity Indicator as used in the US Air Force Boeing B 47B Stratojet Bomber for the 20,000 lb capacity Center Main fuel tank. See photo from the B 47B Flight Manual showing the location of this instrument. It has date stamp of January 1951 and Boeing tamper evidence seals, as well as a BAC order number (Boeing Aircraft Corp). It is in exceptional condition given its age. The dial markings are clear and the glass and case are intact.