Study for "Astronomy", John Singer Sargent, circa 1921

Date: circa 1921. Dimensions: sheet: 47.94 × 63.18 cm (18 7/8 × 24 7/8 in.). Medium: charcoal on laid paper. Collection: National Gallery of Art. John Singer Sargent, Study for "Astronomy", c. 1921, NGA 184317