Vintage 5" dia. Bausch & Lomb Opt Co USA magnifying glass 4-1/2" blk handle Glass has a 4-1/2" black plastic 8-sided handle, glass rim looks to be stainless steel and marked "Bausch & Lomb Opt

 

Please be sure to email with questions before bidding. Thank you... :o) This looks like a pharmacutical bottle because of the numbers and markings on it. I wasn't sure of the embossed letters on the b

 

Although this vintage Keuffel & Esser slide rule is used, it is in excellent condition, as is the leather case. It is 12.5" long. Made in New York in 1947. Owned by a development engineer for Borg

 

Here is an odd set of calipers or dividers. They have a vernier on the bars and can be used to adjust the scale from one end to another, I think. Found them in my dads tool box. I have no use for them

 

Vintage K&E Leroy Humidified Revolving Selector with Pens More of my fathers original Leroy pens in a "Humidified Revolving Selector." He's had these since the 60's. Sadly, it's time to let them g

 

The Kit Includes: 1 - E-Z Sluice Box. The Sluice Box is black, 2 1/2 inches deep, 24 inches long and 7 inches wide. - The lightest, most portable sluice available. Great for backpacking. Made of polyp

 

VINTAGE EXTREMELY RARE EDWARDIAN CAMERA LUCIDA BY "ALEX ALEXANDER".THIS FINE QUALITY INSTRUMENT WAS MADE BY ALEX ALEXANER OPTICIAN TO THE KING EXETER,A SPECIALIST OPTICIAN AND SUPPLIER OF OPTICAL SCIE

 

1972 Vintage Optical Catalog Unitron Astronomical Telescopes Refractors etc Description Original catalog, 1972, Unitron product line, illustrated, specs, info. Softcover, 10.5 x 8, 20 pages in length.

 

Vintage brass drafting and compass set from Milan, Italy. I know nothing about this whatsoever. It's in its original box which has a lot of wear. Needs to be cleaned. Box measures 7-3/4" x 3-1/4" x 7/

 

i000000 32 PIECE DATOLITE LOT CALUMET KEWEENAW HOUGHTON MICHIGAN MINING COPPER MI MICH s&H 2.50 first class... We have specimens from many Michigan Copper Mines including the Nasseau, Superior, Os