Tiger, 1880 - 1916

Franz Marc

Riding Scene (after the engraving "Trotting" by Johann Elias Ridinger, in "Neue Reit-Kunst," 1722), 1880 - 1916

Franz Marc

Seated Bather, 1841 - 1919

Pierre-Auguste Renoir

Mass, 1894 - 1933

Franz Wilhelm Seiwert

Seated Female Saint

Unidentified Artist

X-radiograph(s) of "Male Portrait", 1627 - 1678

Artist of original: Samuel van Hoogstraten

X-radiograph(s) of "St. Catherine", 1425-40 - 1494

Artist of original: As Follower of Hans Memling

X-radiograph(s) of "Portrait of a Man", c. 1495-before 1550

Artist of original: Ambrosius Benson

X-radiograph(s) of "Adoration", 1446-1500

Artist of original: Antonio del Rincon

X-radiograph(s) of "Village Doctor", active 1658-1662

Artist of original: Johannes Natus

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