View Original: | Light bulb, manufactured 1906, filament of tungsten and molybdenum, Swedish patent, TM6855 - Tekniska museet - Stockholm, Sweden - DSC01427.JPG (3562x5333) | |||
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Keywords: Light bulb, manufactured 1906, filament of tungsten and molybdenum, Swedish patent, TM6855 - Tekniska museet - Stockholm, Sweden - DSC01427.JPG en Exhibit in the Tekniska museet Stockholm Sweden This work is old enough so that it is in the public domain Photography was permitted in the museum without restriction 2014-09-16 own Daderot other versions cc-zero Collections of the Tekniska museet Uploaded with UploadWizard Early incandescent light bulbs |