A very fine and unusual Anemometer - Air Flow Meter
An unusual Short & Mason of London - Velocity in Feet Anemometer. Rating 200-3000 RPM in extremely good condition showing very few signs of use. Dial in perfect condition. Spec No.1 - Patent. 2449. Used to analyse air flow and determine wind speed. Around 5 inches high. Working in Perfect Condition.
In its original leather case with purple velvet lining.