Moses and the Brazen Serpent (recto); Ornamental Base (verso)

Recto attributed to Tommaso Vincidor (Italian, died c. 1536), Verso by Unknown Artist (Italian, 17th century) · 1530 (recto); 1600/99 (verso) · Pen and brown ink with brush and gray wash, on cream laid paper prepared with blue wash (recto), and pen and brown ink with brush and brown wash over graphite on cream paper laid down on cream laid paper (verso)

From the collection of Art Institute of Chicago. Free to download, adapt and use — no permission needed.