Electrostatics: Henley’ Discharger by Radiguet, Paris A very nice example of Henley’s discharger, the whole mounted on a polished mahogany base some 5½” x 2¾”. Although unsigned, the device

 

This is an Antique or Vintage Keeton Williams Gold Refining Co KCMO Dental Gold Tin from the early 1900s . This is the Tin ONLY. Please see pictures for details. Click Here to Subscribe to Our Newslet

 

This is a very old mathematical engineering instrument used for compensating polar planimeters, radial planimeters, square root planimeters, mechanical integrators, and suspended pantographs. It would

 

sushimonster Store RARE VINTAGE BALL JOINT 5 PCE DRAWING DRAFTING INSTRUMENTS TOOLS BOXED SET

 

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i000000 1894 ROCKS UNDER MICROSCOPE Antique Lithograph Print Click to Enlarge Original old German lithograph print/book plate(not a modern reproduction)comes from a German lexicon. The print has been

 

Tucker's Violet Rays up for auction. It comes with 5 electrodes as you can see in photos. The cords and capacitor are in good shape. ITEM HAS NOT BEEN TESTED AND IS SOLD AS/IS NO RETURNS

 

NIce pair of Lemaire Paris mother of pearl opera glasses with handle. Handle is removable. I looked thru the lenses and they have a clear picture. No chips or cracks on the lense on the mother of pear

 

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Up for auction is a 1807 copper engraving of Bertuch's meteors. I picked this up quite some time ago and any information I knew about it back then, I have sadly forgotten since. It is an original and