Cylinder Head Temperature, 350 Deg C, Italian Royal Air Force (Regia Aeronautica Italiana) KC-97 which turns the double-arrow pointer

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

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

Here is a WW2-vintage electrical Free Air Temperature Indicator

this director may be used as an auxiliary gun sight for the airplane's fixed guns by adjusting the director to a position parallel to the center line of the airplane

The outer ring of the dial counts up to 10 seconds and the inner dial located at the standard 12:00 position count up to 10 minutes of the 10-second revolutions

Cylinder Head Temperature, 350 Deg C, Italian Royal Air Force (Regia Aeronautica Italiana) KC-97 which turns the double-arrow pointerHere 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.