Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 560
a displayof illuminated gas signs, some lightedby transparency methods, others illu-minated in an ingenious manner byconcealed lights in the front ; some ofthe signs were of the flash type, beinglighted and extinguished at regularintervals. Such signs were also widelyused throughout the exhibition… … Fig. I.—A vii-w df tlie Hnri-aiu-e to tlu- Kxliiliiiimi I lookiiiu inwards ilir t iirii8tiU-s) ; .slmwiiitlarge jniidaiit Sucfg fittings, CMi-i-yiug .)0()-t-.|i. lights within diftiisiiig glass shaiU-s. {Natwal Pliofcuiniph tahcn /.;/ Arlitirinl Li.ihl.) 546 THE ILLUMINATING ENGINEER ternally, and…
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
