During our recent visit home we were given some tools and measuring instruments from Ray's workshop, among them this lovely anemometer.
Opening the wooden case I really wasn't sure what to expect, so the brass and alloy instrument was certainly a surprise. I think every sailor is habitually fascinated by wind speed - it is the one thing we dwell on for many countless hours of our lives.
Nowadays, the very latest wind instruments use ultrasonic measurements to track wind speed, however I don't think that even the modern instruments could match this one at the low end of the speed range.
I really only have to blow on it very gently to generate readings on those dials, which all seem to be working. An amazing instrument, though not one likely to survive at sea. We'll keep it safe and dry on land.