Seated Sibyl, Bartolomeo Guidobono, circa 1690

Date: circa 1690. Dimensions: overall: 39.2 x 26.8 cm (15 7/16 x 10 9/16 in.). Medium: black chalk and graphite, ink, laid paper. Collection: National Gallery of Art. Bartolomeo Guidobono, Seated Sibyl, c. 1690, NGA 71368