A Clump of Trees, ca. 1757, Graphite, brush and gray wash, Sheet: 6 1/4 x 7 5/8 in. (15.8 x 19.4 cm), Drawings, Thomas Gainsborough (British, Sudbury 1727?1788 London), While living in Ipswich in the 1750s, Gainsborough made a number of intensely wro