Untitled, from Rectangular Background (Op. fondo rectangular)

Untitled [Serie Op. Oval]

1968 · Visas inte · National Gallery of Art

Untitled [Serie Op. Montado]

1968 · Visas inte · National Gallery of Art

Untitled [Serie Op. Grande]

1978 · Visas inte · National Gallery of Art

Untitled, from the series Op. Oval Redondeado

n.d. · Visas inte · Art Institute of Chicago

Untitled, from Rectangular Background (Op. fondo rectangular)

c. 1968 · Visas inte · Art Institute of Chicago

Untitled, from Lines (Op. líneas)

1968 · Visas inte · Art Institute of Chicago

Untitled, from Squares (Cuadrados)

c. 1970 · Visas inte · Art Institute of Chicago

Vincent van Gogh

The Bedroom, 1889

Georges Seurat

A Sunday on La Grande Jatte — 1884, 1884–86, border added 1888–89

Gustave Caillebotte

Paris Street; Rainy Day, 1877

Pierre-Auguste Renoir

Two Sisters (On the Terrace), 1881

Paul Cézanne

The Basket of Apples, c. 1893

Claude Monet

Stacks of Wheat (End of Summer), 1890–91

Grant Wood

American Gothic, 1930

Edward Hopper

Nighthawks, 1942