501 Marisol

Face Behind a Mask

502 Lee Bontecou

Fourth Stone

503 John Wesley

Secrets

504 Alex Katz

Joe 1

505 Dan Christensen

Capella

506 Richard Anuszkiewicz

Viridian Sanctuary

508 Christo

Wrapped Coast (Project for Australia)

509 Tadasky

B-142

510 Christo

1240 Oil Drums (Project for the Institute of Contemporary Art, University of Pennsylvania, Philadelphia)

511 Alexander Calder

African with Pets

512 Roy Lichtenstein

Dinnerware: Eight Settings

513 Mara McAfee

Marvelous Modern Mechanical Men

514 Marisol

Untitled (Kiss)

515 Juan Genovés

Desarrollo

516 Lucas Samaras

Untitled

517 Marisol

Untitled

518 Lucas Samaras

Untitled

519 Ray Johnson

i. Untitled Message; ii. Blue; iii. Black; iv. Ziggurat (White) [Four Works]

520 George Grosz

Strassenszene, Berlin, ein neues liedchen

521 Helen Frankenthaler

Painted Book Cover #2

522 Kenneth Noland

Painted Book Cover

523 Karel Appel

Untitled

524 Karel Appel

Four Plates

525 Robert Goodnough

Painted Book Cover

526 Alexander Liberman

Painted Book Cover

527 Komar and Melamid

Our American Flag with Milky Way

528 Tom Wesselmann

Nude

529 Arnaldo Pomodoro

Untitled

530 John James Audubon

The Birds of America

531 Arman

Art Books

532 Mark Tobey

Radiations

533 Manuel Rivera

Metamorfosis (Huella en el espejo no. 4)

534 Heinz Mack

Light-Line

535 Jean Tinguely

Constante No. 10

536 Arman

The Parrot (Concrete Lyrics)

537 Ricardo Martínez

Pareja Antigua

538 Claudio Bravo

The Enigma

539 Mel Ramos

You Get More Salami with Modigliani #3

540 George Segal

Untitled (Nude) [Six Works]

541 John Wesley

Paradise Lamp

542 Karl Horst Hödicke

Boys Under Palm Trees

543 Jean Lucebert

Prediker

544 Paul Jenkins

Phenomena Sri Entrance

545 Neil Williams

PO-8 the Black Bart

546 Larry Zox

Big Bang Series

547 Paul Jenkins

Phenomena Indian Cornfield

548 Edward Avedisian

Untitled No. 2

549 John Seery

Jaw Breaker II