X-radiograph(s) of "Alms-Giver", 1599 - 1660

Artist of original: Follower of Diego Rodriguez Velázquez

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

X-radiograph(s) of "Ruth and Boaz", 1645 - 1727

Artist of original: Arent de Gelder

X-radiograph(s) of "Ecce Homo", 1610 - 1690

Artist of original: David Teniers II

X-radiograph(s) of "John Bush"

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

X-radiograph(s) of "Self-Portrait", 1606 - 1669

Artist of original: School of Rembrandt Harmensz. van Rijn

X-radiograph(s) of "Mary Pepperell Frost"

X-radiograph(s) of "Head of a Man", c. 1390 - 1441

Artist of original: Follower of Jan van Eyck

X-radiograph(s) of "Luis Gongora", 1599 - 1660

Artist of original: Diego Rodriguez Velázquez

X-radiograph(s) of "Head of a Man", c. 1525-1605

Artist of original: (?) Cristofano dell' Altissimo

X-radiograph(s) of "St. Jerome", 1452 - 1519

Artist of original: Leonardo da Vinci

X-radiograph(s) of "Nativity", c. 1398/99 - 1482

Artist of original: Giovanni di Paolo

X-radiograph(s) of "Madonna and Child (completely repainted)"

X-radiograph(s) of "Portrait of a Man", 1497/98 - 1543

Artist of original: School of(?) Hans Holbein the Younger

X-radiograph(s) of "Madonna and Child with Saints", 1478 - 1566

Artist of original: Bernardino di Mariotto

X-radiograph(s) of "Madonna and Child", c. 1465-1516

Artist of original: Giovanni Battista Bertucci I

X-radiograph(s) of "Benjamin Hallowell", 1738 - 1815

Artist of original: John Singleton Copley

X-radiograph(s) of "Girl with Grapes", 1738 - 1815

Artist of original: John Singleton Copley

X-radiograph(s) of "Annunciation"