Registered cover franked with 5 lep. green, 10 lep. red-orange and 20 lep. red in strip of 3. Cancelled with "ΑΘΗΝΑΙ 15 ΔΕΚΕ.18?", via "BRINDISI 29 DIC 90". Arrival "BOHN 2.1.91". On reverse "DEUTSCHES ARCHEOLOG INSTITUT*ATHEN" sticker (Hellas 74/76)