Still Life with Nautilus Cup by Leonard Koetser Gallery, Anonymous Artist, Smith, Robert H., Mr. and Mrs., Speelman Ltd., Edward, National Gallery of Art, P. & N. de Boer Foundation, Kalf, Willem, Es, G.L.M. van, Towers, Colonel, Reineke, W., Newhouse Galleries — VisualArtsDB
![Untitled [verso]](https://api.nga.gov/iiif/1066ea36-7488-4631-8ecc-30351aa03b53/full/843,/0/default.jpg)
![Costanzo Sforza, 1447-1483, Lord of Pesaro 1473 [obverse]](https://api.nga.gov/iiif/c21eab10-6773-404c-bc5e-8a86e67a9dff/full/843,/0/default.jpg)
