["Grotesk," 1955, charcoal drawing by Lyonel Feininger]

Untitled (soldiers providing medical aid to wounded during fighting in central highlands near Dak To, Vietnam)

[Watercolor by Lyonel Feininger, 1939]

Tulip-tree leaves

Untitled (soldiers boarding helicopter following battle for Hill 882, central highlands near Dak To, Vietnam)

[Pen and wash drawing by Lyonel Feininger, 1946]

New York, 23rd Street

[Watercolor by Lyonel Feininger, 1922]

Untitled (soldier in combat gear walking through clearing, central highlands near Dak To, Vietnam)

[Charcoal drawing by Lyonel Feininger, 1913

Untitled (woman measuring chimp)

[Watercolor by Lyonel Feininger, 1953]

[Watercolor by Lyonel Feininger, 1946]