The portrait of Mrs. Cyrus West Field (Mary Bryan Stone), presumably a copy after Pietro Vaini.
<bdi><a href="https://en.wikipedia.org/wiki/en:Oliver_Ingraham_Lay" class="extiw" title="w:en:Oliver Ingraham Lay"><span title="American painter">Oliver Ingraham Lay</span></a>
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<a rel="nofollow" class="external text" href="http://digitalcollections.frick.org/digico/#/details/bibRecordNumber/b10327332">The Frick Digital Collections</a> (<a rel="nofollow" class="external text" href="http://images.digitalcollections.frick.org/media/id/626b43391b6e4aa8383eaf69f93ec519/large">image</a>)