Physical description

Cylindrical and galvanometer made of green-gray enameled metal on a round base.

Inscriptions & markings

Plaque on top of cylinder:
'DIRECT CURRENT GALVANOMETER / COIL RESISTANCE 20 OHMS / CRITICAL RESIST 120 OHMS / SENSITIVITY 200 m.m/μα / Instrument No. 1023 / J. L WILLIAM'