I have a good idea where to look, think it appeared on 'Nuacht' at one stage.
The 400's/500's and Woolwiches did a lot of Radio Train haulage. The 800's were the 'pin-up girls' in steam era advertising, even for Tramore or West Cork excursions!
Also, they printed the locos arseways, if you see any have a close look...smokebox doors are hinged t'other way round.
Saw a CIE handbill once that had an LMS Jubilee(!) I kid you not, masquerading as a CIE Radio Train loco.