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	Angelotes de los Claustros (Angels from the Cloisters), 1980-81 Zinc plate aquatint and zinc plate etching, photo-etching, aquatint, engraving and mezzotint on paper, artist proof, sheet 29 3/4 x 22 1/4 inches (75.6 x 56.5 centimeters), two zinc plates (one exclusively aquatint) 24 x 18 inches (61 x 45.7 centimeters) each