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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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JOHN HERSCHEL (1792-1871) English mathematician, astronomer, chemist and photo0grapher, about 1870 Stock Photo - Alamy
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Photography's Blue Period Gets Its First Major Show in the US | John herschel, This is us, Photography
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Sir John Herschel - Photography from the Scripps College Collection - Claremont Colleges Digital Library
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Image of Sir John Frederick William Herschel, astronomer and physicist (b/w photo) by Cameron, Julia Margaret (1815-79)
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