Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 410
Fig. 2.—Drawing-room lighted Ijv seiiii-iiulirect ga^ liunig. … I Fia. 3.—Sliow-ruoiu with semi-indirect gas light fittings installed. 396 THE ILLUxMlNATING ENGINEER. Luminous Airship Signals. A RECENT article in the DeutscheLuftfahrer ZeitschriH gives an interest-ing account of a new form of luminoussignals for airships. Germany in1909 was the first countrj^…
Lighting
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