X-radiograph(s) of "Frederick the Great", 1683 - 1757

Artist of original: (?) Antoine Pesne

X-radiograph(s) of "Madonna and Child", c. 1452 - 1513

Artist of original: School of Bernardino Pintoricchio

X-radiograph(s) of "Marriage of St. Catherine"

X-radiograph(s) of "Portrait of a Lady (Cruz type)"

X-radiograph(s) of "Portrait of a Woman (Gonzales type)"

X-radiograph(s) of "Baptism of Christ", 1519 - 1594

Artist of original: Jacopo Tintoretto

X-radiograph(s) of "Frigal Repast", 1599 - 1660

Artist of original: Follower of Diego Rodriguez Velázquez

X-radiograph(s) of "Portrait of a Man", 1620 - 1691

Artist of original: School of Aelbert Cuyp

X-radiograph(s) of "Two"

X-radiograph(s) of "Susannah Powell Mason (Mrs. Jonathan Mason)", 1755 - 1828

Artist of original: Gilbert Stuart

X-radiograph(s) of "Tommaso Inghirami", 1483 - 1520

Artist of original: (?) Raphael

X-radiograph(s) of "Henry Clay", ca. 1760 - after 1816

Artist of original: John Neagle

X-radiograph(s) of "Madonna and Child", 1425-40 - 1494

Artist of original: School of Hans Memling

X-radiograph(s) of "Mrs. Tyng", 1688 - 1751

Artist of original: (?) Attributed to John Smibert

X-radiograph(s) of "Benjamin Lincoln", 1770 - 1845

Artist of original: Henry Sargent

X-radiograph(s) of "Male Portrait"

X-radiograph(s) of "Portrait of a Woman", 1581 - 1666

Artist of original: Frans Hals

X-radiograph(s) of "View of the Rialto", 1712 - 1793

Artist of original: (?) Francesco Guardi

X-radiograph(s), 1450 - 1499

Artist of original: School of Bartolomeo Vivarini

Boys and Water Buffalo Approaching a Gate, dates uncertain but probably nineteenth century

Lü Yao