Osram Tungsten or Tantalum lightbulb 1911

Catalogue number #2100787318

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Tungston bulb

Description:

Osram Lightbulb with either a tungston or tantalum filament. Marked "230-60W Made in England 4222 Osram Patent GEC. Working order as illustrated in the 1911 catalogue.Length 15cm Individual bulbs are expensive to send but several are cheap.

Sale Details:

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© Simon Brooke 1997, 1998