Image: Otto Bütschli (HeidICON 116096) (cropped)

Description: Otto Bütschli, Zoologe und Paläontologe, 1878–1920 Professor in Heidelberg
Title: Otto Bütschli (HeidICON 116096) (cropped)
Credit: HeidICON
Author: Max Kögel, Hofphotograph (vorm. Eduard Schultze), Photoatelier Plöck 79, Heidelberg.
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