Front cover from "C.ΠΕΤΕΡbΥΡΓ*7.MAP.1877" to Athens, addressed "a la Majeste le Roi des Hellenes". Circular cachet "T" and handwritten "60" taxed on arrival with 60l. 1875 1st Vienna issue postage due stamp canc. "1". (Hellas D7A).