ITALY. 1863 letter, bearing 15C V.Emanuele IIo (Sass. L18) tied by double line inr red VIA / DI MARE handstamp, sent from Cagliari - Sardinia to Genova. Letter was posted on the 1st of December 1863 - FIRST DAY OF USAGE of 15C stamp. Superb example of rare single letter fee posted from island to mainland. Exceptional postal history item. Bottacchi cert. Sassone L18; Euros5 000 (5 330 CHF). (Photo). Est. 1 000 - 2 000 CHF.