1705–1715
Enrico Cortona, 1822
William B. O'Neal, 1843
William B. O'Neal, 1627
William B. O'Neal, 1849
William B. O'Neal, 1833
William B. O'Neal, 1632
William B. O'Neal, 1909
William B. O'Neal, 1872
William B. O'Neal, 1949
Enrico Cortona, 1690
William B. O'Neal, 1827
![Study for "Thorn Head" [verso]](https://api.nga.gov/iiif/ccbbb767-8c9a-45aa-8c09-62d7df19f71b/full/843,/0/default.jpg)
