Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 273
Old System.Bare lights down Bide i carriage. Fig New System.Central lights in diffo bowls and brackets. Underground Railways. < andle power lamps In addition, therefive bracket lights on each Bide ofthe carriage and one al each end of thecarriage, mailing 30 in all. The illumin-ation has been…
Lighting
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