Portrait of Thomas Estcourt Esq. of Estcourt, Henry Edridge, 17691821, British, 1806, Graphite blue and red chalk on medium, brown, smooth wove paper mounted on card, Sheet: 10 3/8 x 8 3/8 inches (26.4 x 21.3 cm) and Mount: 13 1/4 x 11 1/8 inches (33