X-radiograph(s) of "Portrait of Byles Jr.", 1761 - 1831

Artist of original: Mather Brown

X-radiograph(s) of "Capt. John May", 1759-1826

Artist of original: Christian Gullager

X-radiograph(s) of "Robert Gibbs"

X-radiograph(s) of "Portrait of a Woman", 1594 - 1652(?)

Artist of original: (?) Jacob Gerritz Cuyp

X-radiograph(s) of "Madonna and Child with Saints", 1460 - 1526

Artist of original: School of Vittore Carpaccio

X-radiograph(s) of "Portrait of a Baby"

X-radiograph(s) of "Portrait of a Man", 1697 - 1764

Artist of original: Follower of William Hogarth

X-radiograph(s) of "Gore Children", 1738 - 1815

Artist of original: John Singleton Copley

X-radiograph(s) of "Andrew Pepperell"

X-radiograph(s) of "Portrait of a Man", 1748 or 1749-1819

Artist of original: Samuel King

X-radiograph(s) of "Portrait of a Lady", 1748 or 1749-1819

Artist of original: Samuel King

X-radiograph(s) of "Benjamin Lynde", 1727 - 1792

Artist of original: John Greenwood

X-radiograph(s) of "John Rogers", 1688 - 1751

Artist of original: Attributed to John Smibert

X-radiograph(s) of "Governor Francis Bernard", c. 1725 - 1787

Artist of original: Joseph Blackburn

X-radiograph(s) of "Annunciation"

X-radiograph(s) of "Mme de Sevran", 1748 - 1825

Artist of original: (?) Jacques-Louis David

X-radiograph(s) of "Portrait of a Man"

Canvas fragment, 1905 - 1970

Barnett Newman

X-radiograph(s) of "George Spaulding", 1766 - 1839

Artist of original: William Dunlap

X-radiograph(s) of "Jonathan Brooks", 1786 - 1864

Artist of original: James Frothingham