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Circle In and Out of a Polygon 2, a 1973 painting by Robert Mangold (born 12 October, 1937); in the collection of the Solomon R. Guggenheim Museum, New York,

Circle In and Out of a Polygon 2, a 1973 painting by Robert Mangold (born 12 October, 1937); in the collection of the Solomon R. Guggenheim Museum, New York,