<bdi><a href="https://www.wikidata.org/wiki/Q15435029" class="extiw" title="d:Q15435029"><span title="Swiss copperplate engraver (1719-1782)">Johann Ludwig Nöthiger</span></a>
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<a rel="nofollow" class="external text" href="http://www.helveticarchives.ch/detail.aspx?ID=480580">helveticarchives.ch</a>; Swiss National Library, Prints and Drawings Department