1. "1Η ΕΛΛΗΝ. ΠΤΗΣΙΣ, ΑΘΗΝΑΙ - ΜΠΑΓΚΟΚ - ΣΙΓΚΑΠΟΥΡΗ - ΣΥΔΝΕΥ / ATHENS - BANGKOK - SINGAPORE - SYDNEY / ΟΛΥΜΠΙΑΚΗ ΑΕΡΟΠΟΡΙΑ / 1ST GREEK FLIGHT / ΑΘΗΝΑΙ 3.3.1972” special black date stamp tying 12.50Drs Delos, Tourist Publicity issue, stamp, on corner illustrated cover, [athens / bangkok / singapore / Sydney / first flight / OLYMPIC AIRWAYS], sent by airmail to Sydney. On reverse postmark “G.P.O. SYDNEY 129 - N.S.W. AUST* 4 MR 72”. (Hellas 667C). VF

2. “PHILATELIC SALES CENTRE SYDNEY - N.S.W. - 2000* -4 MR 72” date stamp tying 25c.+ 10c. Australian stamps, on corner illustrated cover [athens / bangkok / singapore / Sydney / first flight / OLYMPIC AIRWAYS], sent by airmail to Athens. On reverse Athens
- Haftia postmark “ΑΘΗΝΑΙ - ΧΑΥΤΕΙΑ* -7 ΙΙΙ 72”. (Hellas 668Α). VF

3. Bangkok (04.03.72) date stamp tying 3 Thailand stamps, on corner illustrated cover [athens / bangkok / singapore / Sydney / first flight / OLYMPIC AIRWAYS], sent by airmail to Athens. On reverse Athens - Haftia postmark “ΑΘΗΝΑΙ - ΧΑΥΤΕΙΑ* -5 ΙΙΙ 72”. (Hellas 668C). VF