Inside Out Library
Light and lighting (1908)
Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 122
Co?y illiniiination from a hnnked-uii … Fig. 2.—Room lii^hted by TuncHolophane seiiii-iiidirect unit. jtcn lamp andLighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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