| Unidentified photographer Summer Resembling Winter: Photographs by Invisible Light 1911, 10 June Magazine illustration The Courtauld Institute of Art Copyright: Illustrated London News Ltd. All rights reserved, Gale Document Number: HN3100215369 LL/36716 "Summer Resembling Winter: Photographs by Invisible Light. Black sky and white foliage photographed by the infra-red rays." Illustrated London News (London, England), Saturday, June 10, 1911; pg. 908; Issue 3764
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