<a rel="nofollow" class="external text" href="http://www.digitaltmuseum.no/011014347907/?query=arkeolog&amp;license_filter=CC%20by-sa&amp;license_filter=CC%20by-nc-sa&amp;rows=24&amp;pos=10&amp;count=16">Eivind Stenersen Engelstad.</a>. DigitaltMuseum. Retrieved on 25.11 2014.
Unknown author<span style="display: none;">Unknown author</span>
1935
Oslo Museum: image no. <a rel="nofollow" class="external text" href="http://www.digitaltmuseum.no/things/bilde/OMU/OB.F05854b">OB.F05854b</a> (Byhistorisk samling), via digitaltmuseum.no.