A black metal box with an eyepiece on one end. On either side of the box are equally-sized holes. There is a gap between the holes into which a slide with a white circular middle part is inserted. A C-shaped bracket wraps around the box.
Accession Number: 2009.ph.97
Primary Materials: metal
length = 14.5 cm, height = 6 cm, width = 11 cm
Used for calculating the luminosity of a light source by comparing it to a source of known brightness.
Manufacturer: Max Kohl A.G. Chemnitz
Date of Manufacture: c. 1910
University of Toronto Department of Physics
Additional Information and References:
- Donated to UTSIC