License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Jacques de Gheyn II. A soldier sliding his right hand along the training-pike, from the Lansquenets series, plate 22, in "Wapenhandelinghe van Roers Musquetten Ende Spiessen" (The Exercise of Arms). The Metropolitan Museum of Art.