Vertical Speed Indicator 6,000 Ft/min F6F Hellcat is presumed to be WW

is presumed to be WW II era from an aircraft of the Armée de l'Air

which could lead to a stall

This is a pre-WWII Type B-7 Cylinder Head Temperature Indicator as used in aircraft of the US Army Air Corps before and during WWII

The Fl number is illegible

Oil-In Temperature up to 120deg C

Vertical Speed Indicator 6,000 Ft/min F6F Hellcat is presumed to be WWHere is an early WWII era Vertical Speed (Rate of Climb) Indicator made by Kollsman, part number 716K 01 7007, used to indicate the vertical airspeed of the aircraft in a climb or descent. This model indicated vertical airspeed from 0 6,000 feet per minute. It has an adjustment screw at the lower left corner to calibrate the pointer to zero at level flight. The subsequent Kollsman model 716K 02, which was made to the US Army Air Force Type C 2 spec,