[{WikipediaArticle oldid='217822873'}]

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| Portrait of Leopold Dukes, from the 1906 Jewish Encyclopedia.| Jewish Encyclopedia| Jewish Encyclopedia; which is in the public domain| [{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:Leopold Dukes portrait.jpg
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