1882 (5 MAI) Registered cover from Athens to Constantinople, franked with 60 lep. (Paris printing) and 40 lep. (1875/80) issue, cancelled "ΑΘΗΝΑΙ 5 ΜΑΙΟΣ 82" type II, endorsed "ΣΥΣΤΗΜΕΝΟΝ", arrival "CONSTANTINOPLE-TURQUIE 19 MAI.82". Part of flap missing. Very rare franking (Hellas 44a, 52a)