sraucher store Vintage Pacific Transducer Corp. Los Angeles,CA Model 615 Thermograph. Not sure how it works but it seems complete with paper and key etc. PTC is still in business in Los Angeles,they s

 

hhdodd Store Lot of 4 Slide Rules, K&E Polyphase, Albert Nestler A-G, Lawrence Eng., & Frost

 

Item for sale is a vintage industrial scientific microscope lamp.American Optical Company Scientific Instrument Division Buffalo 15, N.Y. MADE IN U.S.A." U.S. PAT. NO. 2,278,916 DES. 121,585 CSA APP.

 

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

 

Beautiful artisan made stained glass kaliedoscope with matching stand. This one is hard to describe and even harder to photograph. The third picture gives a glimpse of what it looks like looking throu

 

"Marble Scope" is a wonderful handheld marble kaleidoscope by Sherry Moser. This scope has a 21.85mm removable marble as the object. Any marble of this size could also be used in this scope as the obj

 

i000000 Vintage Cased 11 1/2" Electrical Slide Rule A W FABER CASTELL 378 Click Images to Enlarge You are bidding on a vintage Cased 11 1/2" Electrical Slide Rule by FABER CASTELL No. 378 in good cond

 

This is a nice collector piece... with some history. This Transit belonged to Arthur Eber Sherman, Decorated WW11 Vet, engineer (this was his survey equipment) and member of the Aryan Nations in North

 

A BEAUTIFUL PAIR OF LORGNETTE MOTHER OF PEARL OPERA GLASSES.see picturesTHIS VINTAGE PAIR OF OPERA GLASSES IS SMOTHERED IN MOTHER OF PEARL-THE CRAFSMANSHIP IS SUPERB-THERE ARE BEADED FERRULES SEPERATI

 

This is a very nice Pickett & Eckel metal slide rule with log log scale model N803-T log log. This rule is straight and works smoothly. The finish is in great condition with no scratches, only sli