Gressholmen
<bdi><a href="https://www.wikidata.org/wiki/Q25374243" class="extiw" title="d:Q25374243">Karl Harstad</a>
</bdi>
Oslo Museum: image no. <a rel="nofollow" class="external text" href="http://www.digitaltmuseum.no/things/bilde/OMU/OB.F12040a">OB.F12040a</a>, via digitaltmuseum.no.