X-radiograph(s) of "Madonna Enthroned"

X-radiograph(s) of "Crucifixion"

X-radiograph(s) of "Madonna and Child", 1483 - 1520

Artist of original: School of Raphael

X-radiograph(s) of "Man with a Cane"

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

Study for "Roger Freeing Angelica", 1780 - 1867

Jean-Auguste-Dominique Ingres

Orchids and Rocks, 1820 - 1898

Yi Ha-ŭng (also known as Taewŏn’gun)

White Lotus (Nymphaea lotus L.)

Indian

William Porter Jr. (1788-1818), 1769 - 1828

William Massey Stroud Doyle

Major General August de la Motte, 1738 - 1815

Attributed to John Singleton Copley

Hannah Crocker Bowles Wolff (Mrs. Phillip Wolff) (1827-1872), 1817 - 1881

Richard Morrell Staigg

Stormy Landscape with Cattle

Unidentified Artist

Roses, 1820 - 1900

Thomas Addison Richards

Daisies, 1820 - 1900

Thomas Addison Richards

Schoolroom, 1816 - 1888

William Tolman Carlton

Dante and Virgil Among the Blasphemers (from Dante's "Divine Comedy"), 1757 - 1827

William Blake

Side Box at the Opera, 1756 - 1827

Thomas Rowlandson

The Reverend Thomas Foxcroft (1697-1769), 1688 - 1751

Follower of Attributed to John Smibert

William Hale (1794-1821), 1755 - 1828

Gilbert Stuart

Mount Washington, 1840 - 1930

Charles Herbert Moore