X-radiograph(s) of "George Washington"

X-radiograph(s) of "Elisha Cooke Jr."

X-radiograph(s) of "Two Double Portraits"

X-radiograph(s) of "Benjamin King"

X-radiograph(s) of "Richard Checkley"

X-radiograph(s) of "Mrs. Pierpont"

X-radiograph(s) of "Sara Manning"

X-radiograph(s) of "Elizabeth Paddy Wensley"

X-radiograph(s) of "William Dudley"

X-radiograph(s) of "St. Francis (copy)", 1541 - 1614

Artist of original: Domenico Theotocopoli, called El Greco

X-radiograph(s) of "Old Battersea Bridge (Portrait underneath)", 1834 - 1903

Artist of original: James Abbott McNeill Whistler

X-radiograph(s) of "Adulteress Before Christ", c. 1479 - 1528

Artist of original: Jacopo Palma (called il Vecchio)

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

X-radiograph(s) of "St. Wolfgang"

X-radiograph(s) of "St. John Preaching", 1347 - 1410

Artist of original: Paolo di Giovanni Fei

Nocturne in Black and Gold: Rag Shop, Chelsea, 1834 - 1903

James Abbott McNeill Whistler

Brown and Gold: Lillie "In our Alley!", 1834 - 1903

James Abbott McNeill Whistler

Fragment of the Alps, 1819 - 1900

John Ruskin

Relief (Series B), 1930 - 1985

Charlotte Posenenske

Relief (Series B), 1930 - 1985

Charlotte Posenenske