License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Anonymous Mexican Artist. Christmas card from the Charlot's to a Met member of staff, bi-fold with Virgin and Child on front and personal annotations on back with a list of prints the recipient should receive (probably the Met), before 1930. The Metropolitan Museum of Art.