Butenandt, AdolfHanddrawn sketch of Oestrone signed, one page (cardboard), 5,75 x 4 inch, signed and inscribed in blue felt tip "4. 12. 1979 50 Jahre Oestron Adolf Butenandt", attractively mounted (removable) for fine display with a photograph, shows Butenandt as biochemist (altogether 8,25 x 11,75 inch), in very fine condition.
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