One of eighty-six early incandescent lamps. Arch f

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One of eighty-six early incandescent lamps. Arch filament, no support. Short platinium in pinch seal. Pear shaped bulb, plaster attached? Black insulation at base looks like a sort of glass. Maxim etched on glass. 100 - 8 B etched on glass (volts - c.p. 8?)

Details

Category:
Lighting
Object Number:
1923-173/76
type:
carbon filament lamp
credit:
Institution of Electronical Engineering