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Rheostat, metal, by Celec, English, 1901-1930.

Therapeutics

1901-1930

Sliding stud rheostat in box possibly connected with the mechanical masseur under A657379-84, Riviere material, possibly French, 1855-1910

Sliding stud rheostat in box possibly connected wi

Therapeutics

1885-1910

Rheostat, wall mounted, for use with electrical vibrator, French, 1890-1910

Rheostat, wall mounted, for use with electrical vi

Therapeutics

1890-1910

Rheostat, wall mounted, for use with electrical vibrator, French, 1890-1910

Rheostat, wall mounted, for use with electrical vi

Therapeutics

1890-1910

Rheostat, by A. Gaiffe, Paris, 1900-1910

Therapeutics

1900-1910

Open-spring rheostat, 1850-1910

Therapeutics

1850-1910

Sliding rheostat on rectangular wooden base set inside wooden tray, steel frame, cylindrical coiled with thick copper wire, French, 1890-1910

Sliding rheostat on rectangular wooden base set in

Therapeutics

1890-1910

Large simple rheostat, European, 1850-1890

Therapeutics

1850-1890

Rheostat, wooden board and metal fittings, by Gaiffe of Paris, early 20th century

Rheostat, wooden board and metal fittings, by Gaif

Therapeutics

1901-1930

Rheostat, metal, by Radiguet, 15 Boulevard des Filles du Calvaire, Paris, France, 1880-1910.

Rheostat, metal, by Radiguet, 15 Boulevard des Fil

Therapeutics

1880-1910

Rheostat, English or French, 1900-1908

Therapeutics

1900-1908

Rheostat coil, European, 1900-1910

Therapeutics

1900-1910

Remains of a rheosatat trtansformer, cast iron frame with row of twelve helical resistance springs (mostly broken), twelve studs in straight line with sliding contact handle, French, c1890

Remains of a rheosatat trtansformer, cast iron fra

Therapeutics

1890-1910

Part of electrical panel, oak base with rheostat porcelain fuse box and two pin socket connected, also wooden plug attached to flex, French collection, French, c.1900

Part of electrical panel, oak base with rheostat p

Therapeutics

1890-1910

Coil rheostat, wall mounted, for use with electrical vibrator, French, 1890-1910

Coil rheostat for use with electrical vibrator

Therapeutics

1890-1910

Rheostat, metal, by Curtis Manufacturing Co. of London, early 20th century

Rheostat, metal, by Curtis Manufacturing Co. of Lo

Therapeutics

1901-1930

Twin coil rheostat in rectangular metal casing, sliding switch on top, made by Curtis Manufacturing Co. Ltd, London, English, 1935-1960. Part of G.W. Harris material.

Twin coil rheostat in rectangular metal casing, sl

Laboratory Medicine

1935-1960

Water resistance, wooden bar, glass tube, metal slider, European, early 20th century

Water resistance, wooden bar, glass tube, metal sl

Therapeutics

1901-1930

Rheostat, European, 1870-1920

Therapeutics

1870-1920

Rheostat in large perforated metal casing, dial on top vary the resistance, made by British Electric Resistance Co. Ltd, Middlesex, English, 1935-1960

Rheostat in large perforated metal casing, dial on

Laboratory Medicine

1935-1960

Rheostat consisting of rectangular metal frame with eight ceramic insulators and eight coils, possibly English(?), 1890-1930

Rheostat consisting of rectangular metal frame wit

Therapeutics

1890-1930

Rheostat consisting of 22 separate resistors, European, 1870-1910

Rheostat consisting of 22 separate resistors, Euro

Therapeutics

1870-1910