Carbon "Stopper" Lamp with Adapter

Description (Brief)
Westinghouse made stopper lamps to avoid infringing Edison's patents. The lamp is based on Sawyer-Man patents and includes a removable adapter to allow use of the lamp in both the special sockets made for stopper lamps and standard Westinghouse sockets.
Object Name
incandescent lamp
date made
ca 1894
Westinghouse Electric & Manufacturing Co.
overall: 6 1/2 in x 2 5/8 in; 16.51 cm x 6.6675 cm
place made
United States: Pennsylvania, Pittsburgh
ID Number
catalog number
accession number
Electric Lamps
Energy & Power
American Enterprise
See more items in
Work and Industry: Electricity
Electric Lamps
American Enterprise
American Enterprise
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
from General Electric Lighting Company, thru Terry K. McGowan
Additional Media

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