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Amazon.com: John Herschel (1792-1871) Nsir John Frederick William Herschel English Astronomer Wood Engraving After A Photograph By Julia Margaret Cameron Poster Print by (18 x 24): Posters & Prints
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Sir John Herschel, inventor of the cyanotype and the blueprint (the first form of photocopying) | John herschel, Julia margaret cameron, Portrait
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