License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Dürer-School. Recto: Coat of Arms of Maximilian I as King of the Romans; verso: Coat of Arms of Florian Waldauf von Waldenstein, from The Revelations of Saint Bridget, 1502. The Metropolitan Museum of Art.