"Multiplex" multi-filament tungsten lamp

"Multiplex" multi-filament tungsten lamp, with patent rotary band attached to bayonet cap for filament selection, 40W x 40W, in original box, by John Ismay and Sons Limited, Roden Street Works, Ilford, Essex, 1935-c1945

Details

Category:: Lighting

Object Number:: 1986-1006

type:: filament lamp

credit:: Brightknoll Ltd.

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"Multiplex" multi-filament tungsten lamp

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