Thanks - though the camera gave me a couple of extra chins.....
Yes entry was around some international trade fair but seems there were plenty of them around (Leeds beat Hibs, Rangers and Dundee United on their way to winning it!) And only one club per city could enter.
Newcastle won it in 1969 having qualified finishing in 10th place!
City as champioms and United as the holders qualified for the EC, Liverpool (3rd) and Leeds (4th) took the first 2 (of 4) Fairs Cup places. Everton (5th) couldn't because Liverpool had qualified so Chelsea in 6th took the 3rd spot meaning Spurs (7th) and Arsenal (9th) were ruled out. West Brom (8th) as FA Cup winners went into the ECWC so Newcastle in 10th place took the final Fairs Cup spot and went on to win it!