1859 - 1b brown-grey and 4b buff, from “BOLOGNA 27
1859
1859 - 1b brown-grey and 4b buff, from “BOLOGNA 27 NOV 59' to Piacenza. Letter of great postal-historical importance with a very rare bicolour franking. Signed E.Diena and detailed Cert. Colla: “In my opinion the cover is original as well as the cancels a
