German scientist and pioneer of chemotherapy (1854-1915) who was co-awarded the Nobel Prize for Medicine with Elie Metchnikoff in 1906. Impressive vintage matte-finish 9.25 x 12.5 photo of Ehrlich in a seated pose, presented in its original 12.25 x 16.25 mat, signed on the mat in ink, "P. Ehrlich." Framed and in very good to fine condition, with some staining to the mat, and staining and silvering to the image. Ehrlich's autograph is scarce in any form, and this is just the second signed photograph we have offered; the other example, a postcard portrait sold nearly ten years ago, is no match for the extremely rare, imposing size of this example. From the estate of noted British scientist John Freeman (1877-1962) who worked with Ehrlich,Metchnikoff, Fleming, and others.
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