Coiled Tungsten Bi-Filament Lamp, with separate do
Coiled Tungsten Bi-Filament Lamp, with separate double wreath filaments, 100-220W, fitted with Robins patent Rotary Band, No. 6856-1911, to Bayonet cap for filament selection, English 1910-1945
- Object Number:
- Bayley, D
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