Signedstamped on metal case: SIEMENS & HALSKE.
Inscribedhard rubber plate: No. 69380 / 1°= 0.001 Volt 1°=0.001 Ampère / 1 int Ohm
on central knob: Mille- / Volt & / Ampèremeter
FunctionMeasurement of electric currents.
Historical AttributesThe blue triangle indicates that the instrument was used for teaching the Physics 3 course, Harvard University Physics Department.
ProvenanceFrom the Jefferson Physical Laboratory, Harvard University.