[{WikipediaArticle oldid='251500796'}]

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!!!License Information of Images on page
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| The Wikimedia Commons logo, SVG version.| Original created by Reidab ( PNG version ) SVG version was created by Grunt and cleaned up by 3247 . Re-creation with SVG geometry features by Pumbaa , using a proper partial circle and SVG geometry features. (Former versions used to be slightly warped.)| Reidab , Grunt , 3247 , Pumbaa| [{Image src='https://www.austria-forum.org/cc/images/slim/by-sa.png' alt='CC BY-SA 3.0' align='center' link='https://www.austria-forum.org/cc/by-sa-30.html' target='_blank'}]| Datei:Commons-logo.svg
| Cover page "Illustriertes Wiener Extrablatt" September 25, 1874, Julius von Payer left and Karl Weyprecht (right)| Stadtchronik Wien, Verlag Christian Brandstätter, page 320| Autor/-in unbekannt Unknown author| [{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:Wiener-Extrablatt-1874.jpg
| Ottokar Franz Ebersberg (1833–1886)| unbekannt| unbekannt| | Datei:Ottokar Franz Ebersberg.jpg
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