Carbon filament lamp with two different filaments and a selector switch in the cap

Carbon filament lamp with two different filaments and a selector switch in the cap SMG00223976

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License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

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

License

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

SMG00223976
Science Museum Group
© The Board of Trustees of the Science Museum

Carbon filament lamp with two different filaments and a selector switch in the cap, patented 1902

Details

Category:
Lighting
Object Number:
1985-1080
type:
carbon filament lamp
credit:
Delta Metal Co.