Developed during WWII to test visual acquity for the military by the remarkable Dr. Isreal Dvorine, these color plates were painstakingly developed, tested and re-tested to accurately detect, classify

 

I have owned this pocket transit for several years and only used a couple of times. Very good condition - no scratches or scuffs. Brunton Specifications as follows: Includes Leather Transit Case Singl

 

Just in time for Christmas! We're selling this antique surveyor's compass from France! The compass has a diameter of 3 & 9/16" not counting the attached piece on the side of the body, there is a n

 

Item: Vintage DETECTRON COMPANY Geiger Counter Radiation Detector w Utah Headphones Condition: As Is, untested. All items are considered used and sold "As Is", there are no guarantees. You get what is

 

THIS LISTING IS FOR A 1903 MINING BOOK THAT IS SOMEWHAT UNUSUAL. IT IS TITLED: “McNeill’s Code – Mining and General Telegraphic Code” AND WAS PUBLISHED IN LONDON. THE BOOK IS ALMOST 800 PAGES

 

Classic Keuffel & Esser Log Duplex DeciTrig slide rule. The latest patent dates from 1940, and Mr. Lundin was already a graduate student in Chicago by 1950, so the timeline for dating this is pret

 

Vintage Airguide Compensated Barometer Small Ships Wheel Nautical DecorVintage Airguide Compensated BarometerShip's Wheel Designed CaseSmall size at 5 1/2" in diameter x 2" deepWe will ship this via t

 

READ ALL THE INFORMATION CAREFULLY.. BEFORE YOU BID:: YOUR BIDDING ON: 140 VINTAGE (80'S)...HARD HAT COAL MINE STICKERS..AND VENDERS..DIFFERENT MINES..AND STATES.... . CHECK SCAN FOR CLOSE UP..OF WHAT

 

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This auction is for a vintage wall barometer/ thermometer made by Airguide. It is made of plastic with a glass lens. I cannot vouch for the accuracy of the barometer, but the thermometer is right. It