Insufficient (5kr. Austrian stamp) paid cover canc. "LEOPOLDSTADT WIEN*23.12.69" to Zante. The postage was 30kr (=82 lepta) from 15.5.1868. 5kr considered valid, therefore the cover was taxed with 70 lepta (or 69 lepta sometimes=77kr) and fr. with 10l. red-orange, 20l. blue and 40l. mauve on blue and canc. "ΖΑΚΥΝΘΟΣ*17.ΔΕΚΕ.69". On reverse Corfu transit postmark. Flap missing, still a fine and scarce postal history item. (Hellas 18ba+27a+28b).