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Untitled - Graphic presence - 1971 - etching and aquatint on copper plate 75 × 75,5 cm, 4-color print, Fabriano paper 95 × 95 cm, edition of 90 copies and XXV artist's proofs, Stamperia 2RC print - Rome, Stamperia 2RC edition - Rome - 730146.00
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Untitled - 1971 - aquatint on copper plate 24 × 49 cm, 8-color print, Japanese paper 48 × 64 cm, edition of 75 copies and XXV artist's proofs, Stamperia 2RC print - Rome, Stamperia 2RC edition - Rome - 710147.00