A circular brass disk with an electrical terminal towards the rim of the disk. In the middle of the circular base and rising vertically from it, is a metal rod covered in a non-conducting material.
Accession Number: 2009.ph.107
Metal: Copper Alloy, Unknown non-conducting material
Dimensions (cm): Height = 11.5, Diameter = 14.5
Function: Electrostatic Demonstrator
Associated Instruments: 2009.ph.108
Manufacturer: Locally made?
Date of Manufacture: Late 19th-Early 20th Century
University of Toronto Department of Physics
It appears that in the 1978 catalogue, 2009.ph.107 and 2009.ph.108 were catalogued together. Although related or similar, it is unclear, however, whether they are part of the same instrument.