- Ortensio Toro, Italian, active 16th century
- Smithsonian Institution
- Cooper Hewitt, Smithsonian Design Museum
Research in Progress. Circular table, with the arms of Cardinal Ippolito Aldobrandini in center. At top, title and description, and at bottom, dedication, date and author's and publisher's names.
- Rome, Italy
- Engraving on laid paper
- Museum purchase through gift of E.F. Caldwell & Co.