The Little Schoolmistress. Dated: after 1740. Dimensions: overall: 58.3 x 74 cm (22 15/16 x 29 1/8 in.) framed: 80 x 95.9 x 11.4 cm (31 1/2 x 37 3/4 x 4 1/2 in.). Medium: oil on canvas. Museum: National Gallery of Art, Washington DC. Author: JEAN SIM