Here’s a dayburning General Electric M-400 I found during a walk in Hoboken. These lamps shine a greenish-white when fully illuminated at night, but during the day, or when first coming on, they’re distinctly green. Also, they emit an unmistakable buzz when first coming on at dusk, too. The light comes from mercury vapor. The […]
from Forgotten New York http://forgotten-ny.com/2017/01/general-electric-m400/
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