Heinrich Köhler 384 Auction – Day 1 Single Lots: Europe and Colonies, Kingdom of Lombardy–Venetia – The "P.G." Collection

10 cmi. bistre, horizontal strip of three with lower sheet margin and ‘riga di colore’, imperforated at base, with clear c.d.s. "LIVORNO 16 GIU 62". Very fine. An extremely rare and most attractive multiple. Signed Alberto Diena with certificates (1963 and 1971), Colla with certificate (2004)and  Bottacchi with certificate (2024)