Crown Prince of Prussia
<bdi><a href="https://en.wikipedia.org/wiki/en:William_Holl_the_Younger" class="extiw" title="w:en:William Holl the Younger"><span title="English portrait and figure engraver (1807-1871)">William Holl</span></a>
</bdi>
The Franco-Prussian war: Its causes, incidents, and consequences. By Henry Montague Hozier and W. H. Davenport Adams. William Mackenzie, London, 1872   <a rel="nofollow" class="external text" href="https://archive.org/search.php?query=external-identifier%3A%22urn%3Aoclc%3Arecord%3A1045538816%22">Internet Archive</a>