X-radiograph(s) of "George Washington"

X-radiograph(s) of "Elisha Cooke Jr."

X-radiograph(s) of "Two Double Portraits"

X-radiograph(s) of "Benjamin King"

X-radiograph(s) of "Richard Checkley"

X-radiograph(s) of "Margaret Sewall", 1688 - 1751

Artist of original: Attributed to John Smibert

X-radiograph(s) of "Stephen Sewall", 1688 - 1751

Artist of original: Attributed to John Smibert

X-radiograph(s) of "Joseph Crawford", 1688 - 1751

Artist of original: (?) Attributed to John Smibert

X-radiograph(s) of "Mrs. Pierpont"

X-radiograph(s) of "Benjamin Clark", 1688 - 1751

Artist of original: (?) Attributed to John Smibert

X-radiograph(s) of "Sara Manning"

X-radiograph(s) of "Elizabeth Paddy Wensley"

X-radiograph(s) of "William Dudley"

X-radiograph(s) of "Margaret Fayerweather Bromfield (b.1732, d. 1761)", 1738 - 1815

Artist of original: John Singleton Copley

X-radiograph(s) of "St. Francis (copy)", 1541 - 1614

Artist of original: Domenico Theotocopoli, called El Greco

X-radiograph(s) of "Doge Niccolo Marcello", c. 1488 - 1576

Artist of original: Titian (Tiziano Vecellio)

X-radiograph(s) of "Annunciation", 1452 - 1519

Artist of original: Leonardo da Vinci

X-radiograph(s) of "Mrs. Alexander MacWhorter", 1738 - 1815

Artist of original: John Singleton Copley

X-radiograph(s) of "Old Battersea Bridge (Portrait underneath)", 1834 - 1903

Artist of original: James Abbott McNeill Whistler

X-radiograph(s) of "Jan de Montfort", 1599 - 1641

Artist of original: Anthony van Dyck