Signedstamped on top panel: ELLIOTT BROs. LONDON
Inscribedstamped on top panel: TEMP. 19°C. NO. 1155
FunctionSuch an instrument is used to measure the resistance of electric conductors. For a short general description and other images, go to the following website.
ProvenanceFrom the Department of Physics, Jefferson Laboratory, Harvard University, 4/27/70.