Pioneering French microbiologist and chemist (1822–1895) who demonstrated the germ theory of disease and developed the first vaccine against rabies. Uncommon original vintage 2.5 x 4 carte-de-visite bust portrait, signed in black ink, “L. Pasteur.” In fine condition, with a bit of trivial foxing. A visually appealing example from a history-changing scientist quite uncommon in signed photographs. Pre-certified PSA/DNA and RRAuction COA.
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