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	Dos Ovalos I, 1968 Two-color woodcut on paper (two imbuya woodblocks, one printed in orange and another printed in purple), edition 3/8, sheet 30 1/16 x 29 7/16 inches (76.4 x 74.6 centimeters), image 22 x 25 inches (55.9 x 63.5 centimeters)