Magneto electric therapy apparatus, hand cranked, by Maw and Thompson, of London, 1870-1905 Magneto electric therapy apparatus 1870-1905
Late 19th century early 20th century, English clockwork-driven magneto-electric therapy machine by Maw and Thompson Late 19th century early 20th century 1860-1920
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
Late 19th century upright Davis magneto-electric therapy machine, hand-cranked Late 19th century upright Davis magneto-electric therapy machine
Mid 19th century magneto-electric therapy apparatus, hand cranked, invented by Davis 1854, made by Burnap of Lowell, Mass. Mid 19th century magneto-electric therapy apparatus 1854-1880