A lady called Madame de Montesson (1738-1806), seated at a desk on upholstered red chair, in blue dress with frilly white lace border and cuffs, wearing a hat, her left arm leaning on the desk, a pen in her right hand writing a letter
<bdi><a href="https://en.wikipedia.org/wiki/en:Antoine_Vestier" class="extiw" title="w:en:Antoine Vestier"><span title="French painter (1740-1824)">Antoine Vestier</span></a>
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1782<div style="display: none;">date QS:P571,+1782-00-00T00:00:00Z/9</div>
<a href="https://en.wikipedia.org/wiki/Christie%27s" class="extiw" title="en:Christie's">Christie's</a>, LotFinder:  entry  <a rel="nofollow" class="external text" href="https://www.christies.com/LotFinder/lot_details.aspx?intObjectID=5628580">5628580</a>