Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 352
o Trade Notes, and are open toreceive for publication particulars of new developments in lamps, fixtures, and all kinds of apparatus connectedwith illumination. The contents of these pages, in which is included information supplied by the makers, will, it is hoped,serve as a guide to recent… … don. S.W.), are designed to naeet thedemand for a durable, high-grade, and above. economical fitting whicli is weather-jiroof and practically indestructible, andat the same time gives most efficientreflecting results. They are for use witha single metal filament lamp, and aresu])plied in two types,…
Lighting
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