A River God (recto); Sketches for the Vestibule of the Laurenziana, Florence (verso)
Bartolomeo Ammanati (Ammannati) · 1531–92

Pen and brown ink (recto); pen and brown ink, with red chalk (verso)
Bartolomeo Ammanati (Ammannati) · 1531–92

Pen and brown ink (recto); pen and brown ink, with red chalk (verso)