Little Girl in a Blue Armchair. Dated: 1878. Dimensions: overall: 89.5 x 129.8 cm (35 1/4 x 51 1/8 in.) framed: 114.3 x 154.3 x 5.7 cm (45 x 60 3/4 x 2 1/4 in.). Medium: oil on canvas. Museum: National Gallery of Art, Washington DC. Author: Mary Cass