Fuel Quantity Indicator, Simmonds, C-121 Lockheed Constellation A-1 Skyraider also labeled with an Allison

also labeled with an Allison Engine part number 6734355A

it is in exceptional condition for its age

and used on into the 1950's

It is in experienced condition

as appeared in the Vietnam War-era light helicopter Hughes OH-6 Cayuse

Fuel Quantity Indicator, Simmonds, C-121 Lockheed Constellation A-1 Skyraider also labeled with an AllisonThis is a Fuel Quantity Indicator, 0 10,000lbs, capacitor type, as used in the US Air Force C 121 transport version of the Lockheed Constellation. See photo of the location of the instrument on the Flight Engineers upper instrument panel from the C 121 flight manual dated 1958. It has a manufacturing date of Aug 1956 stamped on its side, as well as test date of the same month. It is in exceptional condition for a 60 year old instrument. Measures 3. 25