Registered cover fr. with 5x2l bistre in block of 5 and 40l violet canc. "ΑΘΗΝΑΙ*3.ΔΕΚΕ.90", arr. "MUENCHEN*19.DEZ...". Overseas postal rate 50 lepta for a registered letter up to 15 grams. ONE OF THE THREE COVERS FRANKED WITH 2 LEPTA BELGIAN PRINT STAMP KNOWN SO FAR, A GREAT RARITY. (Hellas 62+67).