1859 - 2gr blue 3rd plate (PA), vertical pair (pos.81/91) from "CATANIA - 9 59" to Palermo. Rare use of a vertical pair. Initials A.Diena and Cert. Manzoni and E.Diena "...I can confirm that vertical pairs of Sicily, canceled, are rare" (Sassone 8d - € 2.250++)
