Cartoonist portrait of Carl Friedrich Irminger as a volunteer military (<i><a href="https://en.wikipedia.org/wiki/Freischar" class="extiw" title="en:Freischar">Freischärler</a></i>).<br> 
Detail of a watercolor pencil drawing by Johannes Ruff.
<bdi><a href="https://www.wikidata.org/wiki/Q43397064" class="extiw" title="d:Q43397064"><span title="Swiss painter, draftsman and engraver">Johannes Ruff</span></a>
</bdi>
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