1924, "A.D.P.O / P.S.2" (Administration Dette Publique Ottomane) surcharge on three turkish revenue stamps, tied provisional to parcel card by "ALEP 26.9.24" to Constantinople, on reverse transit marks ALEXANDETTE 29.9.24, DEURT-YOL 1.10.24 and STAMBOUL ARRIVEE cds., fine and very scarce.
