Apollo surrounded by other gods in the clouds

ITALIAN SCHOOL, AFTER GIULIO PIPPI, CALLED GIULIO ROMANO (ROME 1499-1546 MANTUA) Apollo surrounded by other gods in the clouds black chalk, pen and brown ink, brown wash, heightened with white on brown paper 15 3/8 x 30 7/8 in. (39.9 x 78.3 cm)