Untitled 1
- Medium
- color spitbite and sugarlift aquatint with hard and softground etching and drypoint on Somerset textured white paper
- Dimensions
- image: 24.1 x 61 cm (9 1/2 x 24 in.) sheet: 38.1 x 74 cm (15 x 29 1/8 in.)
- Genre
- Museum
- National Gallery of Art
![Ercole I d'Este, 1431-1505, 2nd Duke of Ferrara, Modena, and Reggio 1471 [obverse]](https://api.nga.gov/iiif/c2dd513b-923b-4462-b938-f0b8ae488438/full/843,/0/default.jpg)
![Gianfrancesco Martignoni, Milanese Physician [obverse]](https://api.nga.gov/iiif/743c905b-4bba-4f88-a2c5-0782fcfff2c1/full/843,/0/default.jpg)