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Mercury interruptors for German military portable X-ray apparatus

1914-1918

Mercury interrupter

1910-1920

Interrupter, by G. and Adolphus Gaiffe

1870-1910

Mercury interrupter

1900

Mercury interrupter consisting of large cylindrical cast-iron vessel with carrying handle

1910-1920

Metronome interrupter

1880-1890
Mercury interrupter on rectangular wooden base, electric motor in spherical casing, cylindrical interrupter vessel with taps for coal gas, made by Leslie Miller, 66 Hatton Garden, London, England, 1900-1916.

Mercury interrupter on rectangular wooden base

1900-1916
Interrupter, metal, on wood base, with meter, European, first half 19th century

Interrupter, metal, on wood base

1801-1850
Interrupter apparatus supported on rectangular wooden board, electric motor, ring rheostat, porcelain fusebox and tumble switch, two brass stems, A. Gaiffe, maker, Paris, France, c.1890

Interrupter apparatus supported on rectangular wooden board

1890-1910
Cast iron mercury interrupter, motor in spherical casing, cylindrical vessel for mercury, with taps for coal gas, made by Watson, London English, 1900-1925

Cast iron mercury interrupter

1900-1925
Interrupter, metal, possibly air-driven, by Butt, English, 2nd half 19th century

Interrupter, metal, possibly air-driven

1896-1910