1875 cover (close flap missing) posted from "ΑΘΗΝΑΙ (1)*24 ΣΕΠΤ. 75" on arrival taxed with 40l. postage due with 9 1/2 perforation and cancelled with "ΚΩΝΣΤΑΝΤΙΝΟΥΠΟΛΙΣ (ΤΟΥΡΚΙΑ)*27 ΣΕΠΤ. 75". (Hellas D6B).