Engraving and printing methods, advertisement illustration, technical- and trade-paper advertising, street-car advertising, outdoor advertising, house publications (1909)
Scranton : International Textbook Co. · leaf 520
55 56 OUTDOOR ADVERTISING 32 read easily in the evening. In Fig. 40 is shown a repro-duction of a photograph of an advertising sign illuminated.The electric lamps used to illuminate the sign are hiddenfrom view, and the light is thrown on the face of the signby strong reflectors placed at the top…
