Line engraving of <a href="https://en.wikipedia.org/wiki/Adam_Ferguson" class="extiw" title="w:Adam Ferguson">Adam Ferguson</a> by John Beugo, after <a href="https://en.wikipedia.org/wiki/Sir_Joshua_Reynolds" class="extiw" title="w:Sir Joshua Reynolds">Sir Joshua Reynolds</a>
<bdi><a href="https://en.wikipedia.org/wiki/en:John_Beugo" class="extiw" title="w:en:John Beugo"><span title="Scottish engraver">John Beugo</span></a>
</bdi>
published 1790
<a rel="nofollow" class="external free" href="http://www.npg.org.uk/collections/search/portraitLarge/mw36525/Adam-Ferguson?LinkID=mp52943&amp;role=art&amp;rNo=3">http://www.npg.org.uk/collections/search/portraitLarge/mw36525/Adam-Ferguson?LinkID=mp52943&amp;role=art&amp;rNo=3</a>