Light bulb
Edison & Swan Electric Co. Ltd
Category
Glass
Date
1920 - 1929
Materials
Glass, Tungsten, Dumet
Measurements
64 mm (Diameter); 292 mm (Length)
Place of origin
Ponders End
Order this imageCollection
Cragside, Northumberland
NT 1986091
Summary
A Royal Ediswan light bulb made from glass with a tungsten filament and a bayonet fitting type. Manufactured by Edison and Swan Electric Light Company.
Makers and roles
Edison & Swan Electric Co. Ltd, maker