Manufactured by Societe Genevoise
Purchased from James W. Queen & Co.
Grinnell's first Geiger counter which unfortunately is broken.
Similar to a Crooke's discharge tube.
Has been at Grinell College since at least 1928.
Created by Grinnell Students in 1922.
This telegraph recorder used tape to record dots and dashes. It is missing its stylus.
Grant thought this came from Davenport.
This jar can be disassembled and the inner liner can be removed.
