X-radiograph(s) of "Maria Anna (or Teresa)", c. 1612-1667

Artist of original: (?) Juan Bautista Martínez del Mazo

X-radiograph(s) of "Two Saints", c. 1399 - 1464

Artist of original: (?) Rogier van der Weyden

X-radiograph(s) of "Portrait of a Man", 1594-1660

Artist of original: Gerard Douffet

X-radiograph(s) of "Rebecca Rawson"

X-radiograph(s) of "Male Portrait (Landscape underneath)", 1606 - 1669

Artist of original: Attributed to Rembrandt Harmensz. van Rijn

X-radiograph(s) of "William Stoughton", 1677-1727

Artist of original: Everet Duyckinck III

X-radiograph(s) of "The Concert", 1477 - 1510

Artist of original: (?) Giorgione (Giorgio da Castelfranco)

X-radiograph(s) of "Julius II", 1483 - 1520

Artist of original: Raphael

X-radiograph(s) of "Deposition", 1472 - 1517

Artist of original: Fra Bartolommeo della Porta

X-radiograph(s) of "Education of Cupid (copy)", 1756 - 1843

Artist of original: (?) John Trumbull

X-radiograph(s) of "St. Dominic", active ca. 1250 - 1300

Artist of original: Guido da Siena

X-radiograph(s) of "Lady Feeding a Dog", 1618 - 1680

Artist of original: Type of Sir Peter Lely

Assault on a Castle, 15th -16th century

Attributed to Bihzad

X-radiograph(s) of "Female Portrait", c. 1455 - after 1508

Artist of original: Giovanni Ambrogio de Predis

X-radiograph(s) of "Male Portrait", 1605 or 1606-1638

Artist of original: Adriaen Brouwer

X-radiograph(s) of "Virgin and Child and St. Sebastian", c. 1485 - after 1547

Artist of original: (?) Giovanni Cariani

Robert Charles Winthrop (1809-1894), 1805 - 1873

Hiram Powers

Street Near Simplon Village, 1840 - 1930

Charles Herbert Moore

Plant Stalk, 1840 - 1930

Charles Herbert Moore

Baptism of Christ, after Veronese, 1840 - 1930

Charles Herbert Moore