a website collaboration between Science Service and the Smithsonian Institution

1933 - warning signs reflect in the dark


CD 1964091 E&MP27.063

Electric Lighting

June 14, 1933

Warning signs reflect their command in the dark.

Ballston Road, Schenectady, NY -- lighted by GE Novalux Luminairies with sodium vapor lamps, nominally 4000 lumins each, 125 feet staggered spacing. 

Original Caption by Science Service
General Electric

National Museum of American History


Search - Site Map - Subjects to Choose From - Numbering Format

Credits - Copyright - Comments