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Glass bulb, with collar, plug, tap and circular base plate

1761

"May" improved ophthlamoscope in case

1920-1950

Night light of soft plastic

1938-1950

Ultraviolet lamp for domestic actinotherapy

Electrical endoscope

1920-1940

Light bulb

1851-1900

Battery operated ophthalmoscope in a case

1920-1950

Electrical discharge tube

1831-1870

Hexagonal green pearlised celluloid lamp with shade

1910-1940

Electrical transillumination lamp

1919-1930

Electrostatic machine, part only, discharge bulb(2), glass bulb with metal fittings, European, 1880 to 1910

Electrostatic machine

1880-1910

Four thyratron valves, in cardboard boxes, glass, with protective padding, European, second half 19th century

Four thyratron valves

1851-1900

Bedside right lamp in the form of a microscope, with brown phenolic base, and battery operated (battery concealed in base). Made in England, first half of 20th century

Bedside lamp in the form of a microscope

1910-1950