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| German historian and physician Walter von Boetticher (1853-1945)| 19th-century photograph| Unbekannter Fotograf| [{Image src='https://www.austria-forum.org/cc/images/slim/publicdomain.png' alt='Public domain' align='center' link='https://www.austria-forum.org/cc/public-domain-10.html' target='_blank'}]| Datei:Walter von Boetticher.jpg
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