License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Johann Lorenz Haid. Imaginary portrait head of a man wearing a cap and fur-trimmed coat; from the series of 22 imaginary portrait heads after Giovanni Battista Piazzetta, ca. 1730–50. The Metropolitan Museum of Art.