
1. Air France

2. Aer Lingus

3. Pan American Airways

4. British Overseas Airways Corporation

5. Singapore Airlines

6. Pan American Airways

7. Singapore Airlines

8. Pan American Airways

9. British Overseas Airways Corporation

10. British Overseas Airways Corporation

11. Iceland Airways

12. Pan American Airways

13. Lufthansa

14. Caledonian Airways

15. British Overseas Airways Corporation (BOAC)