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

X-radiograph(s) of "Old Woman"

Rembrandt Harmensz. van Rijn

X-radiograph(s) of "Old Man"

Rembrandt Harmensz. van Rijn

X-radiograph(s) of "Man with a Red Hat"

Dosso Dossi

X-radiograph(s) of "Double Portrait"

Rembrandt Harmensz. van Rijn

X-radiograph(s) of "Descent from the Cross"

Gerritt Willemsz Horst Rembrandt Harmensz. van Rijn

X-radiograph(s) of "Woman Artist"

Jakob Ochtervelt

X-radiograph(s) of "Landscape"

Jean-François Millet

X-radiograph(s) of "Portrait of Mr. Nodler"

Gustave Courbet

X-radiograph(s) of "A View near Medfield"

George Inness

X-radiograph(s) of "Woman Weighing Gold"

Jan Vermeer

X-radiograph(s) of "Interier with Still-Life of Fruit"

Pierre Bonnard

X-radiograph(s) of "Philip le Bon"

Simon Marmion

X-radiograph(s) of "Countess of Clanbrassil"

Anthony van Dyck

X-radiograph(s) of "Le Pont"

Gustave Courbet

X-radiograph(s) of "Benjamin Lynde Sr."

John Smibert

X-radiograph(s) of "A Bishop"

Hans Memling

[Shore]

Lyonel Feininger

[Drawing by Lyonel Feininger]

Lyonel Feininger

[Watercolor by Lyonel Feininger, 1923]

Lyonel Feininger

Marais de Fourques

Lucien Clergue

X-radiograph(s) of "Young Lady"

Ferdinand Bol Rembrandt Harmensz. van Rijn

X-radiograph(s) of "Lady Wharton"

Anthony van Dyck

X-radiograph(s) of "Landscape"

X-radiograph(s) of "Malle Babbe"

Frans Hals II

X-radiograph(s) of "The Artist and Family (sketch for Louvre painting)"

X-radiograph(s) of "Dona Velata"

Raphael

X-radiograph(s) of "Don Carlos and Dwarf"

Diego Rodriguez Velázquez

X-radiograph(s) of "Jacob and Family"

Jan Victors Rembrandt Harmensz. van Rijn

X-radiograph(s) of "Benjamin Franklin (1706?1790)"

Joseph Siffred Duplessis

X-radiograph(s) of "head of Christ"

Rembrandt Harmensz. van Rijn

X-radiograph(s) of "Portrait of Mrs. Waldo"

Joseph Badger

X-radiograph(s) of "Samuel Sewall"

John Smibert

X-radiograph(s) of "Anne Boleyn"

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

Il Sassoferrato

X-radiograph(s) of "Male Portrait"

X-radiograph(s) of "Mrs. Cunningham (Anne Boucher)"

John Smibert

X-radiograph(s) of "Benjamin Lynde Jr."

Nathaniel Smibert

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

X-radiograph(s) of "Episodes from the Life of St. Proculus"

Pacino di Bonaguida

X-radiograph(s) of "Portrait of Madame Paul"

Claude Monet

[Watercolor by Lyonel Feininger, 1923]

Lyonel Feininger

Competition Entry for Ukrainian State Theater, Kharkov, 1930-1931

Unidentified Artist Walter Gropius

Gebr. Kappe & Company Factory Warehouse, Alfeld a.d. Leine, 1922-1924

Unidentified Artist Walter Gropius

Camp Architecture, Brandy Station, Virginia

Timothy H. O'Sullivan Alexander Gardner

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

Lucas Cranach the Elder

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

Frans Hals II

X-radiograph(s) of "Marine Battle"

Adriaen van de Velde

X-radiograph(s) of "Unknown Man Standing"

Gerritt Willemsz Horst Rembrandt Harmensz. van Rijn

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

Gilbert Stuart

X-radiograph(s) of "General Dearborn"

Gilbert Stuart

X-radiograph(s) of "Grace Spear"

Joseph Badger

X-radiograph(s) of "George Washington"

John Johnston

X-radiograph(s) of "Trowbridge"

X-radiograph(s) of "Portrait of Maria Isabelle"

Francisco José de Goya y Lucientes

X-radiograph(s) of "Landscape"

Gustave Courbet

X-radiograph(s) of "La Blonde Gasconne"

Jean-Baptiste-Camille Corot

X-radiograph(s) of "Peasant Scene"

Egbert van Heemskerck the Elder