Untitled (soldiers in combat gear riding in back of army truck, Vietnam)

Untitled (soldier with supplies and stretcher in front of medevac helicopter, Vietnam)

[Cloud study]

Untitled (soldiers in field near smoke marking landing zone, Vietnam)

Untitled (soldier washing, Vietnam)

Untitled (May Day Parade, Communist Party route, Madison Avenue and East Twenty-fifth Street, Madison Square, New York City)

[Sheet music in reverse]

Untitled (Borobudur, Java)

Untitled (two helicopters flying over field, Vietnam)

[Bulldozer]

[Drawing by Lyonel Feininger]

Untitled (home of Sun Yat Sen, Hong Kong)

Untitled (man with wrinkled brow, wearing hat)