Diana and Actaeon [above]; Dido and Aeneas Shelter from the Storm [below]

Jan van der Straet, called Stradanus, Flemish, 1523–1605 · ca. 1589 – 1605 · Recto: pen and brown ink, brush and brown wash over black chalk on laid paper Verso: pen and brown ink over black chalk on laid paper

From the collection of Cooper Hewitt, Smithsonian Design Museum. Free to download, adapt and use — no permission needed.