Westinghouse 1500W aviation bulb. 
I'm a sucker for a big light bulb.  I'm not sure exactly what function in aviation this bulb had, but it's 120V so I'm guessing runways rather than airplanes, as they don't typically have 120V wiring so far as I know. 
Source: Surplus Shed 
Contributor: Theodore Gray 
Acquired: 10 October, 2004 
Price: $25 
Size: 10" 
Purity: >90% 
Sample Group: Light Bulbs
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