Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 63
Fig. 1.—A snnll Colour-matching Lamp Unitwhich may be attached to a socket. made in the shape of globes and acornsfor use with the clear-bulb Mazda Clamp. These are largely used in indus-trial establishments in connection with … Fig. 2.—Showing Counter Colour-matching Units as used in a Clothing Store. THE ILLUMINATING ENGINEER (feb. 1920) 53
Lighting
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
