Model no. 89, no. 18. Box is 8 ¼ x 8 ½ x 12 inches and screwed closed. Unknown date but estimated around 1908. Used with the selenium cell photometer to measure current and with the photoelectric cell photometer. Visible in pictures of transit room. An unpublished photograph in the Jakob Kunz papers, University Archives, from the 1918 eclipse expedition shows this galvanometer sitting on a shelf in the background. A published picture from 1910 and another unpublished photo from 1912 show the same galvanometer.
Weston Electrical Instruments Company, New, New Jersey
Astronomy Department, University of Illinois, Urbana, Illinois
Copyright Michael Svec
Harvard Collection: http://waywiser.fas.harvard.edu/objects/2183/reflecting-galvanometer-with-moving-coil
University of Illinois Observatory Collection A193
University of Illinois Observatory, Urbana, Illinois
Weston Electrical Instruments Company, New, New Jersey, “Reflection galvanometer,” University of Illinois Observatory Collection, accessed May 30, 2020, https://uiobservatory.omeka.net/items/show/20.