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

40 cmi. red, 1860 printing, diagonal bisect, upper left half, tied by clear and upright c.d.s. "SERIATE 5 FEB 61" (Lombardy) to entire letter to Milan, with arrival mark on reverse. A rarity and most attractive. Certificates Enzo Diena (1984) and Colla (2019)