'Dowsing' heater bulb

Made:
circa 1917 in England
'Dowsing' heater bulb Robertson Electric Lamps Ltd 'Dowsing' heater bulb, c. 1917.
'Dowsing' heater bulb Robertson Electric Lamps Ltd 'Dowsing' heater bulb, c. 1917.

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License this image for commercial use at Science and Society Picture Library

License

Science Museum Group
© The Board of Trustees of the Science Museum

Robertson Electric Lamps Ltd 'Dowsing' heater bulb, c. 1917.
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Robertson Electric Lamps Ltd 'Dowsing' heater bulb, c. 1917

Details

Category:
Lighting
Object Number:
Y7000.2918
Measurements:
280 mm 55 mm,
type:
incandescent electric lamp with carbon filament

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