In the Opera Box (No. 3), Mary Cassatt, circa 1880

Date: circa 1880. Dimensions: plate: 20.64 × 18.73 cm (8 1/8 × 7 3/8 in.); ; sheet: 35.88 x 26.99 cm (14 1/8 x 10 5/8 in.). Medium: paper, softground etching and aquatint. Collection: National Gallery of Art. Mary Cassatt, In the Opera Box (No. 3), c. 1880, NGA 33337