Electric lamp with 2 filaments and intergral switch

Electric lamp with 2 filaments and intergral switch

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Electric lamp with 2 filaments and intergral switch
Science Museum Group
© The Board of Trustees of the Science Museum

Electric lamp with 2 filaments and intergral switch, bayonet cap, made by the Economical Electric Lamp Co., N.Y., c.1900

Details

Category:
Lighting
Object Number:
1967-75
type:
lamp
credit:
Doyle, M. and T. Ltd.