Lot #3138 – Aneroid Compensated Pocket Barometer

Estimate: $100.00 – $200.00

Vintage aneroid compensated pocket barometer.  Patina silver dial.   Has outside altitude ring marked from 0 to 12000 feet.  Coin edge bezel rotates to set the altitude.  Approximate diameter is 52.1mm.

Dial has tarnish which can be expected due to age.  The barometer has superficial scratches due to normal wear and age.  The case has some areas of discoloration.  Overall condition of the barometer is fair.  Working condition unknown.

An aneroid barometer is a device that measures atmospheric pressure.  It`s often specially calibrated for use as an altimeter, consisting of a box or chamber partially exhausted of air with a hand to indicate the degree of compression of the top caused by the external air.