AA62 ...
I'm reasonably certain that it's XV181 ... just found another pic from a different angle ... you can just make out 181 on the nose (on the larger pic at least).
Image Credit : Unknown (
https://www.flickr.com/photos/bygonetymes/6494994995/)
Coff.
PS. AA62 ... Sorry I just noticed my keyboard dyslexia in typing 818 and not 181
It seems you were afflicted likewise with 218
