12.12.1926. Athens - Istanbul: Fifth AEI flight with airmail stamps to Istanbul. Cover franked with 3dr. litho. plus 3dr.+5dr. Air stamps, canc. "ΑΘΗΝΑΙ - ΑΠΟΣΤΟΛΗ ΕΞΩΤΕΡΙΚΟΥ / 12.ΔΕΚ.26", arr. at Galata (Istanbul) on 12.12.1926. Hellas: FF-23Aii.