UNITED STATES OF THE IONIAN ISLANDS: 1830 cover posted from "OFFICIO DELLA POSTA GENERALE/CORFU" with administrative canc. on reverse "IMP. REG. CONSOLATO AUSTRIACO IN CORFU", via "CORFU*26 AGOSTO 1830", arr. "ISOLA DI ZANTE", with manuscript "Δ5" and "ZANTE".