Edison "Stopper" lamp

Edison "Stopper" lamp

<< >>
Description (Brief)
Thomas Edison and his team at Menlo Park, NJ, demonstrated a commercially-practical incandescent lighting system in December 1879. However, their work did not stop there and they continued to improve and refine the system. In March 1881, Edison received US Patent #239,373 for this variation on his bamboo-filament light bulb. This lamp could be disassembled to replace a burned-out filament. Edison never put this design into production.
Object Name
Incandescent Electric Lamp
incandescent lamp
Object Type
Patent Model
Other Terms
Incandescent Electric Lamp; Lighting Devices; Horseshoe; Metal
Date made
Edison, Thomas Alva
overall: 22 cm x 7 cm; 8 21/32 in x 2 3/4 in
ID Number
catalog number
accession number
See more items in
Work and Industry: Electricity
Energy & Power
Inventing In America
Exhibition Location
National Museum of American History
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.


Add a comment about this object