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!!!License Information of Images on page
||Image Description||Credit||Artist||License Name||File
| Gregor von Helmersen (1803-1885)| http://www.reiss-sohn.de/frame_buch.php?page=22&lang=deu| Atelier Clasen, Staegemann & Co. in St. Petersburg| [{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:Gregor-Helmersen-1876.jpg
| Gregor Helmerseni haud, Vana-Jaani kalmistu| Eigenes Werk| Ehitaja| [{Image src='https://www.austria-forum.org/cc/images/slim/by-sa.png' alt='CC BY-SA 4.0' align='center' link='https://www.austria-forum.org/cc/by-sa-40.html' target='_blank'}]| Datei:Raadi cemetery, Tartu, May14th, 2015 32.JPG
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