Cylinder Head Temperature, 350 Deg C, Italian Royal Air Force (Regia Aeronautica Italiana) KC-97 Here is a WW2-vintage electrical

Here is a WW2-vintage electrical Free Air Temperature Indicator

although the bulb is missing from this example

As the flaps are deployed

whereby the pilot could set an airspeed below which a warning is given

which turns the double-arrow pointer clockwise or counter-clockwise

Cylinder Head Temperature, 350 Deg C, Italian Royal Air Force (Regia Aeronautica Italiana) KC-97 Here is a WW2-vintage electricalHere is an authentic WWII era Cylinder Head Temperature gauge as used across many fighters and bombers of the Italian Royal Air Force (Regia Aeronautica Italiana). It measures to 350d C. The gauge can be seen in the cockpit photo of the Fiat G. 50 Freccia fighter just to the left of the stick. It is in good condition given its age. The glass and case are intact, with just some paint scrapes. Measures ~3. 5 inches diameter and ~2 inches deep.