Wilses protokoll: Nybroen 1903. Negativ s/h glass 22 x 17 cm. W2252.
<bdi><a href="https://en.wikipedia.org/wiki/en:Anders_Beer_Wilse" class="extiw" title="w:en:Anders Beer Wilse"><span title="Norwegian photographer">Anders Beer Wilse</span></a>
</bdi>
Oslo Museum: image no. <a rel="nofollow" class="external text" href="http://www.digitaltmuseum.no/things/011014872119/OMU/OB.Y1271">OB.Y1271</a>, via digitaltmuseum.no.