License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Abraham Bosse. Three Gentlemen Leaning on a Banister Overlooking a Garden where Lovers Stroll, from "The Garden of the French Nobles In Which One Can Pick Up Their Way of Dressing", 1629. The Metropolitan Museum of Art.