Illustrated cover franked with 2c. cancelled "HOLYOKE MASS. JUL. 19 1907", and "DUE 5 CENT" cachet "NEW YORK JUL 20". Upon arrival franked with 20lep.+5lep. (flying mercury) to pay the above postal due, cancelled "ΑΘΗΝΑΙ 7 ΑΥΓ.1907". Mixed franking R! (Ηellas 173, 196)