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Lot 1304

20 cmi. blue, horizontal strip of three with lower sheet margin and ‘riga di colore’, imperforated at base, tied by c.d.s. "S.MARIA MAGGIORE 14 DIC 62", to piece. Very fine. An extremely rare and most attractive multiple. Signed Alberto Diena and Enzo Diena with certificate (1984), Certificates Colla (2004)and  Bottacchi (2024) (Sassone 2I)