Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 34
Fig. 1.—Outdoor Shop Lighting at Enfield, comprising 13 Keith 600 c.p. high-pressure silica cup lamps. … Fig. 2.—Outdoor Shop Lighting at Tottenham, comprising 13 Keith 600 c.p. high-pressure silica cup lamps, and one without a parabolic reflector. C - 24 THE ILLUMINATING ENGINEER (Jan. 1922) When he remembered the difficultyexperienced by his colleagues in therailway world in getting even…
Lighting
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