Transformer, resistance springs

Made:
1890-1900 in France
maker:
Unknown
Transformer, resistance springs

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Transformer, resistance springs
Science Museum Group

Transformer, resistance springs, rheostat and make-or-break switch on rectangular wooden board, French, 1890-1900

Details

Category:
Therapeutics
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
A658632
Materials:
wood, ebonite, iron, copper, porcelain and rubber
Measurements:
length 515 mm
width 295 mm
depth 120 mm
type:
transformers