Untitled (soldier with pickaxe silhouetted against the sun, Vietnam)

[Drawing by Lyonel Feininger]

[New York World's Fair exhibit of trains]

Untitled (Singapore)

Untitled (children in street; old man on beach, Nazaré, Portugal)

[Mark Tobey]

Untitled (soldiers working on rotor of Chinook helicopter, Vietnam)

[Julia Feininger]

Untitled (two men jumping waves in the ocean, Vietnam)

Untitled (soldiers conversing; campsite; soldiers taking cover on ground, Vietnam)

[Cloud study, near Falls Village, Connecticut]

Untitled (105mm howitzer, Mobile Riverine Force, Mekong Delta, Vietnam)

Untitled (New York City)