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Grigg's electromagnetic machine

Grigg's electromagnetic machine

1880-1890
Clarke electromagnetic machine

Clarke electromagnetic machine

Clarke's-type electromagnetic machine

Clarke's-type electromagnetic machine

1854-1860
Grigg's electromagnetic machine in mahogany box

Grigg's electromagnetic machine in mahogany box

1880-1890
Halse's electro-galvanic machine

Halse's electro-galvanic machine

1840-1870
Electromagnetic machine in wooden box

Electromagnetic machine in wooden box

1890-1900
Electromagnetic machine

Electromagnetic machine

1900-1920
Electromagnetic machine in oak case incorporating induction coil and dry cell battery

Electromagnetic machine in oak case incorporating induction coil and dry cell battery

1910-1920
Electromagnetic machine

Electromagnetic machine

1870-1880
Small electromagnetic machine

Small electromagnetic machine

1880-1900
Electromagnetic machine

Electromagnetic machine

1880-1890
Electromagnetic machine

Electromagnetic machine

1850
Grigg's electromagnetic therapy machine

Grigg's electromagnetic therapy machine

1886-1900
Grigg's electromagnetic machine mounted in box with room for 2 cells

Grigg's electromagnetic machine mounted in box with room for 2 cells

1880-1890
Electromagnetic machine

Electromagnetic machine

1801-1850
Clark's electromagnetic machine in rectangular wooden box

Clark's electromagnetic machine in rectangular wooden box

1880-1900
Electromagnetic machine in rectangular wooden case

Electromagnetic machine in rectangular wooden case

1920
Electromagnetic coil with cables and bolts for suspension

Electromagnetic coil with cables and bolts for suspension

1914-1918
Induction coil and smee cell

Induction coil and smee cell

1850-1860
Electromagnetic machine in rectangular wooden case

Electromagnetic machine in rectangular wooden case

1890-1910
Electromagnetic machine

Electromagnetic machine

1890-1900
Electromagnetic machine containing 2 dry batteries and a small induction coil

Electromagnetic machine containing 2 dry batteries and a small induction coil

1920
Grigg's electromagnetic machine

Grigg's electromagnetic machine

1880-1890
Box containing Grigg's late 19th century electromagnetic therapy machine

Box containing Grigg's late 19th century electromagnetic therapy machine

1873-1900
Electrode for Grigg's magnetoelectric machine

Electrode for Grigg's magnetoelectric machine

Electromagnetic machine

Electromagnetic machine

1870-1890
Clarke's electrotherapeutic machine

Clarke's electrotherapeutic machine

1835-1845
Clarke's electromagnetic machine

Clarke's electromagnetic machine

1834-1860
Electromagnetic machine, with cover, wood with metal fittings, European, first half of 19th century

Electromagnetic machine

1801-1850
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
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 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
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
Electromagnetic machine, consists of bobbin-like induction coil, electro-magnet and terminals, 2 electrodes, English, 1840-1880

Electromagnetic machine

1840-1880
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, manually operated, probably French, 1880-1920

Electromagnetic machine

1880-1920
Electromagnetic coil with cables and bolts for suspension, in wooden case, used for extracting shrapnel from wounds by German armies during First World War, made in Germany, 1914-1918

Electromagnetic coil with cables and bolts for suspension

1914-1918
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
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
Electromagnetic coil with cables and bolts for suspension, in wooden case, used for extracting shrapnel from wounds by German armies during First World War, made in Germany, 1914-1918

Electromagnetic coil with cables and bolts for suspension

1914-1918
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
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
Grigg's electromagnetic machine in mahogany box, with conical induction coil and electro-magnet, invented and patented by Grigg's, made by J.R. Chislett, Plymouth, English, 1880-1890

Grigg's electromagnetic machine in mahogany box

1880-1890
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
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