Admiral The Honourable Charles Stewart 
<p>A three-quarter-length portrait to right, wearing a blue velvet coat lined with red silk, blue breeches and a red waistcoat laced with gold. His dress wig is white and he reclines against a gun barrel gesturing to the right with his left hand. The artist has indicated the subject's loss of his right hand by the positioning of the stump of his forearm in a pocket. In the right background a ship is shown in action.  The portrait shows the sitter in old age. 
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The portrait is signed 'A Ramsay' bottom left, although the inscription top right describing the sitter as 'The Duke of Argyle &amp; Greenwich' is erroneous.
<bdi><a href="https://en.wikipedia.org/wiki/en:Allan_Ramsay_(artist)" class="extiw" title="w:en:Allan Ramsay (artist)"><span title="Scottish portrait painter (1713-1784)">Allan Ramsay</span></a>
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[collections.rmg.co.uk/collections/objects/14510.html Collections of the National Maritime Museum]