Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 215
lighting at the present time.Of special interest are the Anti-Zeppe-lin reflectors, an example of which is lighting Regulations forbid the exhi-bition of unscreened lights in such cases.With this type of reflector the lamp iscompletelj^ hidden, and they have alsothe advantage from an…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.