For another impression of the first in the collection of the Metropolitan Museum of Arts, New York, accession number JP3260, go to http://www.metmuseum.org/collection/the-collection-online/search/55276
For another impression of the first, second and third in the collection of the Museum of Fine Arts Boston, accession numbers 2000.380.9a-c, 2000.55a-c and 2000.380.20a-c, go to www.mfa.org/collections
For another impression of the first in the collection of the Arthur M. Sackler Museum, Harvard Art Museums, object number 1971.109.1, go to http://www.harvardartmuseums.org/art/12829