Hand drawn 19th-century map of Gothenburg's city fortress, drawn by A. P. Boman, Lieutenant.
<div class="fn value">
A. P. Boman</div>
<bdi><a href="https://en.wikipedia.org/wiki/en:National_Archives_of_Sweden" class="extiw" title="w:en:National Archives of Sweden"><span title="Swedish administrative authority">National Archives of Sweden</span></a>
</bdi>