1866 - 5s pink and 10s blue, vertical pair and sin
1866
1866 - 5s pink and 10s blue, vertical pair and single copy, all 5th issue, from "MANTOVA 19/6" to Milano, routed via Switzerland due to the ongoing war. Rare 35 soldi rate, free to destination, particularly interesting as it was posted the day the postal agreements between Italy and Austria were interrupted. Important and rare postal history object. Cert. E.Diena
