Autograph note in French on one of Pasteur’s printed visiting cards, 4 x 2.5, imprinted “Louis Pasteur, de l’Academie Francaise et de l’Academie des Sciences.” At the bottom Pasteur writes (translated): “With you my thanks for your so very authoritative intervention in the unspeakable campaign of that presumptuous fellow who never set foot in a laboratory.” In fine condition, with light mounting remnants to reverse. A strongly worded message from the devout scientist. Pre-certified PSA/DNA and RR Auction COA.
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