Ammeter, DC, Dual Engine, Weston 827 Type 28Y1, C-121 Lockheed Constellation PV-1 Ventura testing would be required to

testing would be required to confirm accurate operation

This Recognition Light Control Assembly appeared in a number of US Army Air Force aircraft of WW2

Not yet confirmed

this was used in aircraft such as Do335

Ammeter, DC, Dual Engine, Weston 827 Type 28Y1, C-121 Lockheed Constellation PV-1 Ventura testing would be required toThis is a dual DC Ammeter, 0 450 amps, 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 MJB 1 control panel from the C 121 flight manual dated 1958. This instrument has a date stamp of 1957. Measures 3. 25 inches diameter and 3 inches deep.