German chemist (1872–1942) who won the 1915 Nobel Prize for Chemistry for his research related to the structure of plant pigments, including chlorophyll. Publisher’s questionnaire, filled out in ink and signed “Prof. R. Willstätter,” one page both sides, 5.5 x 8.75, Ernst Heimeran Verlag letterhead, May 18, 1925. Willstatter answers several questions related to art. File holes, otherwise fine condition. RRAuction COA.
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