carbon filament vacuum lamp
- Made:
- circa 1920 in England
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Science Museum Group
© The Board of Trustees of the Science Musuem
Britannia 100-16 carbon filament vacuum lamp with ornamental
Science Museum Group Collection
© The Board of Trustees of the Science Museum
Britannia 100-16 carbon filament vacuum lamp with ornamental cap/shade holder combined, c. 1920
