Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 126
A variety of these units are on view atthe Comi)aiiys showrooms. Unlighted,they ajipoar as if cut out of st)hdblocks of Italian marble; when lighted,they apjiear equally and mildly luminousall over, gi^•i^g a most charming effect,and yet ))eing a most efficient form ofsemi-indii-ect lighting. 114…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
