For the years between 1960 and 1972 the General Electric M-100 lamp, a greenish-white mercury vapor variety without a glass reflector bowl, jockeyed for supremacy on the side streets of New York City with a fellow bowl-less make, the Westinghouse OV-8. The lack of a glass bowl must have made these lamps much cheaper than […]
from Forgotten New York http://forgotten-ny.com/2017/04/ge-m-100-lamp-douglaston-1999/
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