Antique, Scientific and Technical Instruments 2015-09-09 Auction - 243 Price Results - Gray's Auctioneers in OH - Page 4
A Tesla Coil (Primary and Secondary) Built by G.B.A Magic Lantern 'Carousel' Projector for 3 1/4 x 4 InchA Set of Eight Adjustable Tuning Forks, Early 20th
Done
Cleveland, OH, United States
Auction Details

Antique, Scientific and Technical Instruments

Antique and historically important scientific and technical instruments from an important university collection, together with the collection of John Davidson and Tom Peterson.
Sold
A Wheatstone Bridge by Edelmann, Muchen,: A Wheatstone Bridge by Edelmann, Muchen, Late 19th/Early 20th Century.Interior galvanometer appears to have been removed. There are provisions for an external galvanometer. Instrument labeled:
0072: A Wheatstone Bridge by Edelmann, Muchen,Est. $500-$700
Sold
An Electrical Apparatus by Hartmann and Braun,: An Electrical Apparatus by Hartmann and Braun, Frankfurt, 20th Century.Having two slide wire rheostats, a two key momentary contact switches with terminals each marked Batt(ery) and Galv(anometer), a
0074: An Electrical Apparatus by Hartmann and Braun,Est. $200-$400