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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 Davis magneto-electric therapy machine, hand-cranked, English

Late 19th century Davis magneto-electric therapy machine

1878-1900
Magneto electrotherapy machine, Davis type, possibly made by Elliott of London, 1860-1920

Magneto electrotherapy machine

1860-1920
Davis magneto-electric therapy apparatus, hand-cranked, late 19th century

Davis magneto-electric therapy apparatus

1871-1900