Davis and Kidder's magneto-electrotherapy machine, hand-cranked, made by W H Burnap of Lowell, Mass., U.S.A., 1854-1898 Magneto-electrotherapy machine 1854-1880
Davis magneto-electric machine from later 19th century, hand-cranked, English or American make, 1854-1890 Magneto-electric machine 1854-1890
Late 19th century Davis magneto-electric therapy apparatus, hand-cranked, by Burnap of Lowell, Massachusetts Late 19th century Davis magneto-electric therapy apparatus 1854-1890
Late 19th century magneto-electric therapy apparatus, hand-cranked Late 19th century magneto-electric therapy apparatus
Davis later C19 magneto-electric therapy machine with mechanism to show magnet keepers position on exterior dial, probably English-made, 1860-1890 Davis later C19 magneto-electric therapy machine 1860-1890
late C19/early C20 magneto-electric therapy apparatus, hand-cranked, English, probably by Maw and Thompson late C19/early C20 magneto-electric therapy apparatus 1870-1910
Later 19th century magneto-electric machine for electrotherapy, hand-cranked, probably infringing Davis' USA patent of 1854 Later 19th century magneto-electric machine for electrotherapy
Late 19th century upright Davis magneto-electric therapy machine, hand-cranked Late 19th century upright Davis magneto-electric therapy machine
Late 19th century upright Davis magneto-electric therapy apparatus, hand-cranked Late 19th century upright Davis magneto-electric therapy apparatus
Magneto electrotherapy machine, Davis type, possibly made by Elliott of London, 1860-1920 Magneto electrotherapy machine 1860-1920
Davis' mid C19 magneto-electric therapy machine, handcranked, by Burnap of Lowell, Mass., supplied by Mathews, London, U.S.A., 1860-1880 Davis' mid C19 magneto-electric therapy machine 1860-1880
Late 19th century clockwork driven magneto-electric therapy machine by Maw of London Magneto-electric therapy machine 1860-1910
Mid C19 magneto-electric therapy machine with ornate gilt castings, hand-cranked, probably after Davis of USA, English or American, 1850-1875 Mid C19 magneto-electric therapy machine with ornate gilt castings 1850-1875
Davis magneto-electric therapy apparatus, hand-cranked, late 19th century Davis magneto-electric therapy apparatus 1871-1900
Davis' later C19 magneto-electric therapy apparatus, hand-cranked, by Negretti and Zambra of London, Holborn Viaduct, W1 Davis' later C19 magneto-electric therapy apparatus 1865-1900