<bdi><a href="https://www.wikidata.org/wiki/Q107445041" class="extiw" title="d:Q107445041"><span title="Norwegian photographer and painter (1837–1869)">Niels Bang Wingaard</span></a>
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Oslo Museum: image no. <a rel="nofollow" class="external text" href="http://www.digitaltmuseum.no/things/021046437291/OMU/OB.01040">OB.01040</a>, via digitaltmuseum.no.