Untitled (Chinook helicopter lifting 105mm howitzer, Vietnam)

[Sunset, oil painting by Lyonel Feininger]

Untitled (two soldiers in circular ditch by altar set up for religious service, central highlands near Dak To, Vietnam)

[Watercolor by Lyonel Feininger, 1952]

[Tree]

Kortheuer group (Mark Tobey, center)

[Buildings and clouds, New York]

Sofa in Wigwam

Untitled (three soldiers on cliff setting up rocket launcher/recoilless rifle, Vietnam)

Fungi

Untitled (people in Native American costumes at Beaux Arts Ball)

Covered bridge

Palisade [California]