Signedon dial: Deprez et Carpentier / Bté - s.g.d.g.
on dial: James W. Queen & Co. / Philadelphia / N°2504
Inscribedinstrument face under scale: AMPÈRES_MÈTRE
FunctionMeasurement of electrical currents. More information on a similar instrument is found on the following website.
See also the entry on the James W. Queen & Co. catalogue here.
ProvenanceFrom the Department of Physics, Harvard University.