St. Paul Fed by a Raven by Giovanni Francesco Barbieri (known as Guercino), pen in brown, Guercino, c. 1650–1655

St. Paul fed by a raven by giovanni francesco barbieri (known as guercino), c. 1650–1655, pen in brown on light beige paper, 27. 6 x 36. 3 cm. , kunsthaus zürich. Date: c. 1650–1655.