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c0207  

 

 
history and origins
 
Manufacturer / Brand Name
Siemens & Halske

Country of Origin
Germany

Factory Location
Charlottenburg ?

Date of Manufacture
ca.1880s
 
electrical attributes
 
Voltage
100-105 (est.)

Wattage / Candle Power
16cp (est.)

Amperage

 

physical attributes
 
Envelope
1.38" Dia.
Atmosphere
Vacuum


Finish / Color
Clear
Filament
Hairpin; Carbonized Cotton

 
Base
Siemens & Halske
 
 
comments
  This early example of a Siemens & Halske lamp most likely represents the first form and features sheets of copper used to clamp the carbonized cotton filament to copper lead-in wires. The lamp is bottom exhausted thereby placing the obtrusive exhaust tip at the bottom of the lamp as opposed to the top of the lamp where it's prone to damage. This lamp uses an exposed contact lug base, unique to S&H. Later S&H lamp bases utilized a more traditional cemented base with an insulating material such as plaster or porcelain, but still retained the "duck foot" contact lugs.