This aircraft carries a real mixture of markings. It is titled Alidair but carries its Air Inter registration and cheat line. The fin carries the Alidair design but not the logo. It later became G-ARBY, presumably soon aftter this photo was taken and was written off near Exeter (UK) on 17th July 1980 afetr a forced landing 10 miles short of the runway.
This photo was added on 31 July 2017, and has since been viewed 228 times.