![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)
Ercole I d'Este, 1431-1505, 2nd Duke of Ferrara, Modena, and Reggio 1471 [obverse]
- Medium
- copper//Proof for a testoon
- Dimensions
- overall (diameter): 2.87 cm (1 1/8 in.) gross weight: 15.85 gr (0.035 lb.) axis: 4:00
- Genre
- sculpture
- Museum
- National Gallery of Art
![Begonnener Pferdekopf (Beginning Sketch of Horse Head) [p. 7]](https://api.nga.gov/iiif/3a3bbb04-5daa-4f15-9d62-f84a4a7627c6/full/843,/0/default.jpg)
![Allegory of the Triumph of Religion [reverse]](https://api.nga.gov/iiif/26e40017-59e9-4953-bf51-2a3fbae2645c/full/843,/0/default.jpg)
