This is a early 1900’s pocket surveying aneroid altimeter barometer signed by Keuffel Esser New York and made by well known British barometer and compass maker Francis Barker and Son (logo of the maker on the back of the case). The silver barometer dial goes from 20-31 in/mercury and the altimeter scale from zero to 12000 feet adjusted by a bezel. The fine calibration is made from the back with a small screw. The body of the altimeter is made of brass and is in very good condition.
If it's still online, it's still available.
Local only. Cash only. I'm cleaning out my house of things I've accumulated over the last 40 years.
Click on 'more ads by this seller' just below the map. Thank you.
Discounts are given when a buyer buys three or more items. Gold and silver items are not included. Coins are not included.