Image: Prism salesroom
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Description: Pavement prisms used to light a room inside a hollow sidewalk. The points dangling from the ceiling, and the wall on the right, are glass prisms which combine to refract the light, so that it passes right under the building and daylights the basement. Original caption: LUXFER PRISMS IN USE. Illumination in a basement salesroom by means of prisms in the sidewalk.
Title: Prism salesroom
Credit: https://glassian.org/Prism/Luxfer/Paper/WSI/page279.html
Author: "Luxfer Prisms as Light Transmitters" , anonymous 1902 article
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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