Design for Rock-work and Cascades at Virginia Water, Windsor Great Park, Thomas Sandby, 1780s (?)

Drawing. Date: 1780s (?). Dimensions: sheet: 6 9/16 x 12 13/16 in. (16.7 x 32.5 cm). Medium: graphite on laid paper, pen and ink and watercolor. Collection: Metropolitan Museum of Art. Design for Rock-work and Cascades at Virginia Water, Windsor Great Park MET DP821082