1863 - 1c green grey and Sardinia 1c grey black on
1863
1863 - 1c green grey and Sardinia 1c grey black on piece from "MILANO 31 DIC 63". Rare mixed ""twin values" franking in the last day of validity of the Sardinian stamps. Sign. Emilio Diena and Cert. E.Diena (Sassone L14+Sard19 - Zanaria Serra (2004) € 3.5
