Davis magneto-electric machine from later 19th century, hand-cranked, English or American make, 1854-1890. Unusual in that instructions inside top of case were printed on bright green paper.
- Object Number:
overall (closed): 108 mm x 287 mm x 117 mm, 1.86 kg
- electrotherapy equipment therapeutics (electrotherapy), electrotherapy and electrotherapy equipment
- Loan, Wellcome Trust