The item for sale is a Hubbard Quantum Mark Super Electrometer in Midnight blue i really dont know much about the unit I tested it and it works properly any other questions feel free to ask.

 

Hello, and thanks for looking. Please excuse any not-so-great pics; still getting the hang of it. This is a very nice vintage General Electroc phototvoltaic cell, model 8PV-1, from the 1960s. It measu

 

Early 1900 vintage glassware up for sale. These are more for show than anything. This is prior to ground glass. They doubled up on glass in rims...interesting. I've put together a : 1000, 275, and 200

 

Drug Rep Pentasa Pen Very Unique, RARE Tip fits in ball like stand and the top has liquid the moves from one bubble to the other, activated by heat! New in Box Thank you for looking at my NO RESERVE a

 

Vintage Gerber Scientific Instrument - Gerber Variable Scale in org box. Made from Lucite and aluminum. Model TP007100B; patent 284335. roughly 12” long. Condition- intact - slide moves smoothly. th

 

In brass, no maker's name but typically 19th century well made, a small student's microscope, in fitted mahogany carry case, brass fittings, with original brass tweezers, slide holder, three part obje

 

... with Descriptive Original Labels.

 

Early 20th century magnifying glass with its own 3 legged stand - probably for carrying in the field for map reading or the examination of specimens perhaps. The glass screws up and down in its housin

 

American Optical Optometry Ophthalmology Giantscope Electra II Case Mod 12014  Does not light. Power supply OK. Sold for parts or repair. See photos for details and feel free to ask me any questions

 

I am offering a picket trigonometry slide rule and case in excellent condition. Good luck and happy bidding. Posted with eBay Mobile