compass galvanoscope - unknown maker

physical object

posted on 2022-12-05, 22:43 authored by Middlebury College Antique Scientific Instrument Collection

wooden square with printed compas, over which a neeedle spins under copper wire, two contacts flank either side Photographed in 2019 by Liam Wynne, 2021.5, as part of the MuseumWorks internship programme