12.11.1931 Janina-Athens: Airmail cover fr. with 50l.+4x10l. postage dues (handwritten "...ελλείψει κοινου"/due to the lack of regular stamps) canc. "ΙΩΑΝΝΙΝΑ*12.XI.31", arr. "ΑΘΗΝΑΙ*12.XI.31". Special cachet "ΕΝΑΡΞΙΣ ΑΕΡΟΠ.ΣΥΓΚΟΙΝΩΝΙΑΣ/ΑΘΗΝΩΝ-ΙΩΑΝΝΙΝΩΝ". Also airmail AC16c+AC22 cachets. (Hellas FFC209A).