U.S. 5c stationary envelope mailed from Chicago to Athens, where it was readdressed franked 25l. deep indigo canc. "ΑΘΗΝΑΙ*20.ΝΟΕΜ.90" and mailed to Shanghai forwarded to Yokohama, where it was franked with 5 sen japanese stamp and mailed back to Chicago. A very fine triple mixed franking cover. Rare. (Hellas 77a).