Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 85
sting features. Thefirst was a box sign, suitable for mountingon a vertical wall or shop pilaster as illus-trated in Fig. 1, which was illuminatedentirely by means of a single lampmounted in the small metal cowl at thetop. The two sides and one end of the 74 THE ILLUMINATING ENGINEER (march 1921)… … Pig, 1 Typical box Bign, illuminated by asingle lamp at top, readable on both sidesand one end if required. The lettering and designs were executedon the back of the glass in any desiredcolours, reproduced and made durable byKoparine transfers. Provision wasmade for ventilation and access to…
Lighting
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
