The L.E. Knott Company was a Boston manufacturer of scientific instruments active from 1896 to the early 1930s.
Stamped: P.H. Wynne – Patent. June 28, 1904. February 20, 1906.
Condition: Generally very good with the usual overall wear, handling, oxidation of metal. One small chip to glass.
“Galvanometers & Meters.” Spark Museum. http://www.sparkmuseum.com/GALV.HTM (26 March 2018).
“L.E. Knott Apparatus Company.” Collection of Historical Scientific Instruments Harvard University . 2017. http://waywiser.fas.harvard.edu/people/50/l-e-knott-apparatus-company;jsessionid=EBD6C95F19FED66638359767F0B3F40D (26 March 2018).
“Reflecting galvanometer with moving coil (D’Arsonval).” Collection of Historical Scientific Instruments Harvard University . 2017. http://waywiser.fas.harvard.edu/objects/4269/reflecting-galvanometer-with-moving-coil-darsonval?ctx=5c677d1c-4f38-4505-a091-55bdbee65894&idx=31 (26 March 2018).