Weathered Boulders, Franz Edmund Weirotter, circa 1769

Date: circa 1769. Dimensions: overall: 31.5 x 29.5 cm (12 3/8 x 11 5/8 in.). Medium: red chalk on laid paper. Collection: National Gallery of Art. Franz Edmund Weirotter, Weathered Boulders, c. 1769, NGA 72326