I was recently meeting with a future chemist. His friend, who is about to graduate with a degree in Chemistry, had a rather pompus attitude. It seemed like the right time to give him a little taste of

 

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Theodolite- is a precision instrument for measuring angles in the horizontal and vertical planes. Theodolites are used mainly for surveying applications, and have been adapted for specialized purposes

 

UP FOR BID IS A VINTAGE SET OF 4 CERAMIC COASTERS. THE COASTERS HAVE THE SCHERING LOGO ON TOP LEFT ALONG WITH A HAND PAINTED BOTANICAL FLOWERS WITH THEIR LATIN NAMES. THE COASTERS ARE ALL MARKED AND M

 

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

 

Up for auction is a 1800's. KEUFFEL & ESSER Co. NEW York and 74482 this is an Engineer's Mountain and mining Transit model 74482 it belongs in a Museum for sure . There are clamps and tangent scre

 

Field Issue – US Army – Aneroid Barometer Made by Wallace & Tierman. Order Date 14 Day 44. Wood case shows a few small field nicks, but structurally sounds; hinge and latch are flawless. Dial

 

Inside of case in good condition. Outside of box in fair condition. ***to open the box you must pull out the pin as shown in pics*** 11of 12 pieces No markings that we can find On the outside cover it

 

VINTAGE K & E SLIDE RULE POLYPHASE NO. N4043-3 MADE IN USA GREAT CONDITION WITH CASE ORIGINAL BOX INCLUDED BOX TOP HAS SOME WRITING UNDER COVER NO BREAKS FUNCTIONS PERFECTLY LOW STARTING BID OF ON

 

Up for auction are 3 New Jersey Zinc Company items: •1 – Horsehead, logo for NJZ – 2 1/8” tall •1 – NJZ 125th Anniversary keychain – 1848-1973 with horse head on one side and other side