UNITED STATES OF IONIAN ISLANDS (1815-1864): Entire letter from "CORFU*22 MAR" to Patras cachet "PAID AT CORFU", oval "ΥΠΕΡΘΑΛΑΣΣΙΑ" and handwritten "Δια του Αγγλικού ατμοκίνητου", arr. "ΠΑΤΡΑΙ*11 ΜΑΡΤΙ. 1848". Handwritten postage "10" to be paid on arrival. Some damage around the writing.