Large simple rheostat, European, 1850-1890
1850-1890
Water resistance
1901-1930
Twin coil rheostat in rectangular metal casing
1935-1960
Rheostat, metal, by Curtis Manufacturing Co. of London
1901-1930
Remains of a rheosatat trtansformer
1890-1910
Rheostat, wall mounted
1890-1910
Sliding rheostat on rectangular wooden base set inside wooden tray
1890-1910
Sliding stud rheostat in box possibly connected with the mechanical masseur under A657379-84
1885-1910
Rheostat, by A. Gaiffe, Paris, 1900-1910
1900-1910
Coil rheostat for use with electrical vibrator
1890-1910
Rheostat, on wood board with metal fittings
1801-1850
Rheostat, English or French, 1900-1908
1900-1908
Open-spring rheostat, 1850-1910
1850-1910
Rheostat in large perforated metal casing
1935-1960
Rheostat, European, 1870-1920
1870-1920
Rheostat consisting of 22 separate resistors
1870-1910
Rheostat, wooden board and metal fittings
1901-1930
Rheostat, metal, by Radiguet
1880-1910
Rheostat consisting of rectangular metal frame with eight ceramic insulators and eight coils
1890-1930
Rheostat coil, European, 1900-1910
1900-1910
Rheostat, wall mounted
1890-1910
Rheostat, metal, by Celec, English, 1901-1930.
1901-1930
Part of electrical panel
1890-1910