Venus in Vulcan's Forge (recto); Geometry (verso)
Hermann Weyer · c. 1607
Pen and black ink, with brush and gray wash (recto), and pen and gray ink with brush and gray wash heightened with lead white (verso), on ivory laid paper
Hermann Weyer · c. 1607
Pen and black ink, with brush and gray wash (recto), and pen and gray ink with brush and gray wash heightened with lead white (verso), on ivory laid paper