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	Dos Ovalos II, 1968 Four-color woodcut on paper (two cedar woodblocks, one printed simultaneously in red and green and another printed simultaneously in purple and gray), edition 2/8, sheet 28 1/2 x 42 1/2 inches (72.4 x 108 centimeters), image 22 5/8 x 36 1/8 inches (57.5 x 91.8 centimeters)