Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 208
^X, •^r! \ ---■ VD *x -■ 10 11 12 Distance in feet along Frame.Fig. G.—Lower Surfaces. --,_ / ---,.. _„,-- --., ^ \ y / r .X / <■■.• -t@ \ X ■fN , ■ Distance in feet along Frame. Fig. 7.—Upper Surfaces. Illumination of Composing Frames in various Printing Works. No. 1. Regent St. Polytechnic.… … Fig. 11.—Illiimiuatiuu of IriutiDg Machines at Messrs. Eyre and Spottiswoodes
Lighting
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
