Antique 1900's L. E. Knott Apparatus Co. Boston Scientific Resistor Tester Unit

Description

Antique 1900's L. E. Knott Apparatus Co. Boston Scientific Resistor Tester Unit
Size: 8.25"long×4.25"w×3.75"tall including screw on caps.
Antique auction find. Estimated age esrly 1900's. Has one capped  screw that is unattached-see pictures.  Brass hardware attached to a wood base. I am not positive to what the black top is made (possibly bakelite). Instrument is marked K.E. Knott Apparatus Company Boston 1258. Item is old and has some wearing, scuffs and marks from age and use.  Please see pictures for overall condition and feel free to ask questions.
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