Daylight efficiency of artificial illuminants (1909) (14590637479)
Size: 1192px × 2096px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ancient, book, bygone, copy, cover, editorial, historic, history, illustration, news, nostalgia, nostalgic, photo, photograph, photography, space, stock, textbook, vintage