Historical information
Horace Darwin, youngest surviving son of Charles Darwin, was a founding partner of the Cambridge Scientific Instrument Company in 1881 (http://www.museumoftechnology.com/cic.html).
Physical description
Composite object with three feet supporting two squared cylinders attached to a clamping device and metal block with four current terminals. Cylinders are covered with red leather. Metal block and clamp base appear painted.
Inscriptions & markings
Engraved on terminal block: 'No 15548 / THE CAMBRIDGE SCIENTIFIC INSTRUMENT CO LTD. CAMBRIDGE. ENGLAND'
Engraved on side of terminal block: 'To be excited from 200 volts circuit / with coils in series. Connect terminals 2 & 3.'
