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| Postcard for correspondence chess| https://www.niggemann.com/DBBilder/material/MD5011.jpg| Schach Niggemann| [{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:Postcard-for-correspondence-chess.jpg
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