Gilles Demarteau, the Elder after François Boucher, ‘Young Girl Reading "Héloise and Abélard"’, 1770, National Gallery of Art, Washington, D.C.
image: 19.8 x 15.1 cm (7 13/16 x 5 15/16 in.)  overall (third framing line): 21.9 x 16.6 cm (8 5/8 x 6 9/16 in.)