Offered here is an anemometer with the original leather case. Anemometer marked as being manufactured by Taylor - National Mine Service company. Measures 4.25" diameter. In working condition. A strip

 

This is for an old Victorian road drawing tool that draws two lines of ink. The steel ends are adjustable on both prongs for the fineness of ink and also the wheel in the centre adjusts the distance b

 

Antique wooden slide rule made by Keuffler and Esser Co. of New York. Patent 1,934,232. I'm told these are from the 1930s and I believe the 38 reference on the leather case refers to the individual's

 

Charvoz surveyors compass, model 56-0628. New, never used. Leather case is in perfect condition. Compass is in perfect condition, base measures 4.5" x 4.5" and comes with mount for tripod or stick. Ma

 

NO RESERVE!!!!!!!!VINTAGE 1960'S-1950'S THE ORIGINAL JUMBO DIAL BY THE OHIO THERMOMETER CO. MADE IN U.S.A. FROG OUTDOOR THERMOMETER. IT IS IN USED CONDITION WITH SOME RUST ON THE BACK AND SPRING(SEE P

 

Protractor Drafting Drawing Set Germany Compass Protractor Full by Fredrick Post This is a very nice protractor set Made In Germany. Shipping is $5

 

Resorcinol is a white to yellowish solid having a density of 1.3 and a melting point of 110 degrees Celsius. Soluble in water and many organic solvents. It's uses include - resorcinol-formaldehyde res

 

You would be bidding on a Keussel & Esser Co. Surveyor from 1964. It comes with a box and an attachment. The number on it is N5116P Serial number 64964.

 

Vintage POST Hemmi 1441 Pocket Slide Rule With Magnifier Description; GOOD CONDITION This small (five-inch) one-sided slide rule is bamboo covered with white celluloid, with a clear celluloid and meta

 

MICROSCOPE SLIDE. B. DARNTON. FORAMINIFERA. UNUSUAL LABELS. A superb slide of FORAMINIFERA from Brian Darnton – prepared in his usual careful manner and Dry Mounted on a photographic grid of 25 squa