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Portrait of Charlotte Bertie, née Warren, 4th Countess of Abingdon, 1778

graphite and wash on laid paper, Sheet - h:8.50 w:7.50 cm (h:3 5/16 w:2 15/16 inches) Unframed - h:5.80 w:4.80 cm (h:2 1/4 w:1 7/8 inches). The Edward B. Greene Collection 1941.572