Here is a very-good-condition, vintage wooden slide rule from Keuffel & Esser Co. that comes with its original leather case. The slide rule measures about 10.5 in. long and features equivalents an

 

THANK YOU FOR VISITING OUR AUCTION!!for your consideration yet another FANTASTIC OFFER:This vintage fold-up microscope thread counter appears to be brass. It comes in the original box. I'm cleaning ou

 

Today i have for sale a great 1960's mining safey sign . this one is porcelain enameled blue and white. it read no admittance except to employees on duty. this sign was made in pittburgh pa. this is a

 

Vintage folding magnifying glass in leather caseCase measures approx. 2 1/2" acrossStitches on the case are not present.There are scratches on the glass. Please see photos for further description. SHI

 

melovenuns777 Store Rare Believed to be from the 1950's Sans and Streiffe vintage microscope 1200 X Wide Angle microscope with kit Vintage Sans and Streiffe, microscope kit No. 520. Very hard to find

 

Vintage Atco Bakelite Magnifying Glass with Teardrop Leather Case USA 1950's Atco Magnifying Glass with Bakelite Frame and Teardrop Shaped Leather Case. This magnifier is approx 2½" in diameter with

 

musicreddog_0 Store Vintage Russian TENTO BNU3 12 x 40 Binoculars w/ Amber Filters & Leather Case A Pair of Vintage 1980's Tento Russian Made Binoculars, power 12 x 40, Serial No :- N 178844. Thes

 

This is a small vial with antique radium gauge parts inside it. Unlike other rad tester items, it is very small, and fully sealed (potted with epoxy) so the radium will not get out. It is strong enoug

 

This cute little pocket telescope is in very good original condition. The optics are pretty clear. It is marked "Pockescope Sr Patent Appl'd For Woolensak Rochester U.S.A.". It measures about 3 1/4 in

 

I have up for auction a Nice Vintage Dietzgen Compass Drafting Surveyors Tool Set in a Case.It is marked Germany US Zone.The number is 1285-3.I do not believe any of the compasses were ever used.The c