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Light and lighting (1908)
Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 37
Fig. 1.—Showing pendant fitting equipped withHolophane Adjustable Canopy. … Fig. _.—Showing details of Holophane Adjust-able Canopy.Lighting
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
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