WWII Pendulum Anemometer by Daloz (Boxed Set) pocket map Primarily used by watchmakers

Primarily used by watchmakers

Excellent condition

Weight: 3 oz

Diameter: 4 cm

moments of historical significance

WWII Pendulum Anemometer by Daloz (Boxed Set) pocket map Primarily used by watchmakersThis is a modern version of Robert Hooke's 1667 Pendulum Anemometer; a fascinating device that allows for precise pressure and windspeed measurements without need of electricity. Utilized during the Antarctic Division by civil engineers in WWII, this vintage type M. 1991 A aneroid barometer features a calibrated steel base and arms, with aluminum wind vane numbered 0 to 14, and hollowed brass ball. Complete in original box. Sourced from Madrid, Spain.