A late 19thC Siemens Universal galvanometer

Estimate: $500 - $700

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Lot Description

A late 19thC Siemens Universal galvanometer, in original mahogany fitted box with matching numbered box, certificate and instrument, multiple brass fittings and extras, the booklet details 'this instrument combines in itself the arrangements necessary for all ordinary testing operations ... 1. for measuring electrical resistances. 2 for comparing electro-motive forces. 3 for measuring the intensity of a current'.