A rare fine quality MK V WW1 aircraft altimeter by T. Wheeler, London.
Well - known barograph & barometer makers of the period.
Circa - 1916 / 17. Serial No 724 Q
In excellent original condition with a clean silvered dial, registering to
The knurled adjustment wheel is operating correctly, allowing the dial
to be set for take off altitude.
Rear of casing well marked with the "War Dept" stamp. Original
bevelled glass in good condition, with some small scratches / age marks.
The instrument responds well to barometric pressure variations, allowing it
to be demonstrated as a simple barometer in the home.
More difficult to source than later British WW1 altimeters.