Electromagnetic machine, upright induction coil and battery, in rectangular wooden case, with trembler and terminals, battery not original, probably German, 1870-1880 Electromagnetic machine 1870-1880
Electromagnetic machine, manually operated, probably French, 1880-1920 Electromagnetic machine 1880-1920
Penny-in-the slot electromagnetic machine, Clarke type mechanism, in glazed brass framed case, probably English, 1850-1900 Penny-in-the slot electromagnetic machine 1850-1900
Clarke's-type electromagnetic machine in rectangular box with horseshoe magnet, 2 rotating bobbins and pulley wheels, possibly made in U.S.A.(?), 1835-1860 Clarke's-type electromagnetic machine in rectangular box with horseshoe magnet 1835-1860
Clarke's electromagnetic machine, horse-shoe on 3 balls, with pulley-wheel and twin bobbin, with 2 sheaphones, probably English, 1850-1860 Clarke's electromagnetic machine 1850-1860
Electromagnetic induction machine, personal relic of Sir Lauder Brunton, mahogany case containing various electrodes and cells, French, 1885-1910 Electromagnetic induction machine 1885-1910
Electromagnetic machine, consists of bobbin-like induction coil, electro-magnet and terminals, 2 electrodes, English, 1840-1880 Electromagnetic machine 1840-1880
Electromagnetic machine, with cover, wood with metal fittings, European, first half of 19th century Electromagnetic machine 1801-1850
Electromagnetic machine in rectangular-mahogany case, consisting of 3 cells, induction coil and electro-magnetic, invented and patented by J.R. Chislett, English, 1880-1890 Electromagnetic machine in rectangular-mahogany case 1880-1890
Clarke's electromagnetic machine, horse-shoe magnet, twin rotating coils and pulley wheel, on marble base, English, 1835-1860 Clarke's electromagnetic machine 1835-1860
Clarke's electromagnetic machine in rectangular box, twin horse-shoe magnets, rotating bobbins and indicator dial, English, 1860-1890 Clarke's electromagnetic machine in rectangular box 1860-1890
Clarke's electromagnetic machine, horse-shoe magnet, twin bobbins and pulley system, possibly made in the U.S.A., 1890-1900 Clarke's electromagnetic machine 1890-1900
Electromagnetic machine in wooden case, containing 2 batteries and induction coil with sliding outer coil, made by K. Schall, 76 New Cavendish Street, London, England, c. 1900. Electromagnetic machine in wooden case 1895-1905
Large wooden box containing panel with induction coil and rheostat, and assorted electrodes, possibly English, 1920-1930 Large wooden box containing panel with induction coil and rheostat 1920-1930