<bdi><a href="https://en.wikipedia.org/wiki/en:Karl_Eduard_Biermann" class="extiw" title="w:en:Karl Eduard Biermann"><span title="German painter (1803-1892)">Karl Eduard Biermann</span></a>
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Borsig Archiv, Scan using old "Original &amp; Fälschung"-Pictures from HörZu, 18/1987, S. 158 10.12.08