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

X-radiograph(s) of "Crucifix"

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

William Ponsonby, 2nd Earl of Bessborough (1704-1793), 1738 - 1815

John Singleton Copley

"The Holyoke Caudle Cup", 1655/56 - 1722

John Coney

Tailpiece, 1872 - 1898

Aubrey Vincent Beardsley

Johann Gaspar Spurzheim (1776-1832), 1792 - 1863

Alvan Fisher

Two Girls on a Cliff, 1836 - 1910

Winslow Homer

Pike, Lake St. John (Ouananiche Fishing), 1836 - 1910

Winslow Homer

Ebenezer Rockwood Hoar (1816-1895), 1847 - 1922

Frank Hector Tompkins

Composition No. 1, Sunrise, 1864 - 1941

Alexei von Jawlensky

Album of 16th-century Netherlandish Prints and Drawings, c. 1560 - 1618

Adriaen Collaert

Design for Exhibition Room in the Hanover Museum, 1890 - 1941

El Lissitzky

In the Park, 1815 - 1905

Adolph Menzel

Marie-Joseph-Paul-Yves-Roch-Gilbert du Motier, Marquis de Lafayette (1757-1834), 1838 - 1902

Aimé Jules Dalou

Portrait of Frédéric Villot, 1798 - 1863

Ferdinand-Victor-Eugène Delacroix

Beach, New England, 1858 - 1924

Maurice Brazil Prendergast

The Fortress of the Alhambra, Granada, 1796 - 1864

David Roberts

A Cornfield with Windmill and Spire seen under a Crescent Moon; verso: Sketches of hill and moon, 1805 - 1881

Samuel Palmer

Still Life, 1890 - 1964

Giorgio Morandi