1855 - 20c sky blue, 2nd plate printing of 1861, i
1855
1855 - 20c sky blue, 2nd plate printing of 1861, irregular block of 12, of which 10 without effigy, with untrimmed margin on the right and at the bottom, all MNH. Six perfect stamps including two with effigy. Very rare. Cert. Manzoni (Sassone 15Da - € 14.000++ per i six perfect)
