VINTAGE SLIDE RULE KEUFFEL & ESSER COMPANY POLYPHASE DUPLEX SLIDE RULE IT IS 12 1/8" LONG THERE IS 3 PATENT DATES ON IT-JUNE 5,00-DEC 22,08-8.17.15 IT IS IN EXCELLENT CONDITION COMES WITH ORIGINAL

 

Stannous chloride is a white, crystalline solid having a density of 3.95 and a melting point of 247 degrees Celsius. Soluble in water and alkalines. It's uses include - ceramics, sensitizing agent for

 

You are bidding on a vintage Grier Bros. Pittsburgh PA Mining Lamp. The Lamp Measures 4 1/2" X 3". The lamp is in found condition and does have dents on the shield, bottom and back as shown in picture

 

I have for sale one Charvos brand antique drafting set. It comes with a hard, black carrying case, and includes five compasses of varying sizes, along with some other tools, of which I am unfamiliar.

 

Vintage weather station with HUMIDITY,BAROMETER AND THERMOMETER. The center is a ships wheel which gives this item appeal for nautical decor as well. This is in good working order with a nice genuine

 

ray54188 Store Description FROM THE MINIMAL RESEARCH I HAVE CARRIED OUT ON THIS RARE SOLAR MICROSCOPE I WOULD SUGGEST IT DATES TO THE MID 19TH CENTURY. MEASURING IN TOTAL 15.5 INCHES TALL THE LARGE CI

 

Offered here is an original heavy brass cased ten cap hand blasting machine. Tag shows it to be manufactured by the Hercules Powder Company. Patent date of 1930 on case. This would have been used to s

 

used unit as-is missing a clamp on holder , other clam is there, 42(f4.2mm) na 0.6510 (16mm)na 0.65025 ba optico co 15mm broncse43(f4.2mm)Na0.65

 

We Post Worldwide By Air . Please Scroll Down For All Images & Description Due to the Rise in Royal Mail Post Prices we are offering a 2nd Class Recorded Delivery Post option in the Final UK Invoi

 

Vintage Antique Doctor's Bag Black Leather by Schell - Making bags since 1865 Lock works and winning bidder will receive the combination/code Base of Bag Measures 16.5" x 6" Measures 9" in Height A ve