X-radiograph(s) of "Portrait of a Youth", active 1640, died 1662

Artist of original: Reynier van Gherwen

X-radiograph(s) of "Man with a Fur Hat", 1606 - 1669

Artist of original: Rembrandt Harmensz. van Rijn

X-radiograph(s) of "Parable of Workers in the Vineyard", active 1640, died 1662

Artist of original: Reynier van Gherwen

X-radiograph(s) of "Adoration of the Child", 1420 - 1475

Artist of original: Follower of Dieric Bouts

X-radiograph(s) of "Miss Pearce", 1783 - 1872

Artist of original: Thomas Sully

X-radiograph(s) of "Duchess of Duffern (or is it a man ?)", 1755 - 1828

Artist of original: Gilbert Stuart

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

X-radiograph(s) of "Portrait of a Woman (or saint ?) (Copy)", c. 1465-1519

Artist of original: (?) Juan de Flandes the Elder

X-radiograph(s) of "Paul III (copy)", c. 1488 - 1576

Artist of original: Copy after Titian (Tiziano Vecellio)

X-radiograph(s) of "Portrait of a Woman", c. 1541-1609

Artist of original: (?) Federico Zucchero

X-radiograph(s) of "Two Women", c. 1635 - 1708-1710

Artist of original: Jakob Ochtervelt

X-radiograph(s) of "St. Anne Altar"

X-radiograph(s) of "St. Anne Altar (test on wood structure)"

X-radiograph(s) of "Family Group", c. 1597 - 1671

Artist of original: Jan Hermansz van Bijlert

X-radiograph(s) of "Charles Pelham", 1738 - 1815

Artist of original: John Singleton Copley

X-radiograph(s) of "Peter Pelham", 1738 - 1815

Artist of original: John Singleton Copley

X-radiograph(s) of "John Marshall"

X-radiograph(s) of "Sir Christopher Hatton", 1548-1616

Artist of original: Cornelis Ketel

X-radiograph(s) of "Charles Chauncy", 1763 - 1804

Artist of original: (?) John Mason Furnass

X-radiograph(s) of "Mrs. Powell", 1800 - 1880

Artist of original: Francis Alexander