Engine Temperature Indicator, 0-350deg C, Mk I, 6A/620 RAF Air Ministry Canberra and displays fuel quantity on

and displays fuel quantity on the refueling panel at the flight engineers station (see photo of the panel and location of the indicator from the KB-29P Flight Manual dated 1951)

but perhaps not surprising for an artifact of its age

or outside air temperature

as well as light bomber A-20

Engine Temperature Indicator, 0-350deg C, Mk I, 6A/620 RAF Air Ministry Canberra and displays fuel quantity onThis is a fine specimen of a WWII era British Engine (or Cylinder Head) Temperature Indicator, Mk I, type 6A 620, indicating up to 350deg C for each engine, as used in aircraft of the RAF, RCAF, and RAAF. According to the guide Types and Location of Instruments in RAAF (Royal Australian Air Force) dated 1943, which cross references to those used in RAF aircraft, the 6A 620 was used in Beaufighter (using 2) and the patrol bomber seaplane Short