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Yellow X, 1994 -
Three Black Elements, 1990
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Yellow Diagonal, 1988
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San Jose, 1983
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Red and Black Spiral, 1975
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Trio, 1969-1970
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Peter's First, 1969
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Threesome, 1968-1969
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Archer, 1968
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Orange, Blue and Black, 1968
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Adirondack, 1967
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Yellow to White to Blue to Black, 1966-1967
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Four Forms, 1959
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Untitled, 1958
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Untitled, 1955
