1862 - 20c indigo, pair with lower sheet margin im
1862
1862 - 20c indigo, pair with lower sheet margin imperforate and full sheet margin showing frame line at bottom, from 'TORINO 23 JAN 63' to Gers. Extremely rare, E.Diena: 'I know of only one other pair of the 20c with 'Code' on cover.' Signed Grioni, cert.