The J. Paul Getty Museum
License, verbatimCC0
The J. Paul Getty Museum: image dedicated to the public domain under Creative Commons Zero (CC0), stated on the media record itself ('Rights for Media'), with download clearance.
Bisson Frères. [Two etchings by Rembrandt: "Head of an Old Man in High Fur Cap: Bust" and "Sheet of Studies with Three Heads of an Old Man"], 1858. The J. Paul Getty Museum.