Two studies of a dove ( recto ); Two studies of a frog ( verso )

GIROLAMO FRANCESCO MAZZOLA, IL PARMIGIANINO (PARMA 1503-1540 CASALMAGGIORE) Two studies of a dove (recto); Two studies of a frog (verso) red chalk, pen and brown ink, brown wash (recto); red chalk, stumping, the outlines partly incised (verso) 4 3/8 x 6¼ in. (112 x 158 mm.)