Image: Ernst Abbe (HeidICON 29803) (cropped)

Description: Ernst Abbe, Physiker, Leiter der Optischen Werke Zeiss, seit 1877 Direktor der Sternwarte in Jena
Title: Ernst Abbe (HeidICON 29803) (cropped)
Credit: HeidICON via Prometheus
Author: Bräunlich & Tesch, Inh. Emil Tesch, Hofphotograph Jena
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