1605–1615
O'Brien, John, Mr., 1691
O'Brien, John, Mr., 1715
Italian 17th Century, 1600
O'Brien, John, Mr., 1714
O'Brien, John, Mr., 1770
Italian 17th Century, 1601
O'Brien, John, Mr., 1600
O'Brien, John, Mr., 1667
O'Brien, John, Mr., 1755
O'Brien, John, Mr., 1803
O'Brien, John, Mr., 1590
O'Brien, John, Mr., 1813
![Euclid [obverse]](https://api.nga.gov/iiif/1ffa27cd-115d-4025-b199-91b853e35d8e/full/843,/0/default.jpg)
![Head of a Gentleman [recto]](https://api.nga.gov/iiif/00c43ff0-f806-40f3-bbbb-511bef012ac6/full/843,/0/default.jpg)
