Seddon Atkinson 400 "Cottage Cheese"

Just wondering if anyone can remember a Seddon Atkinson 400 sleeper cab tractor unit from the mid seventies with the nameboard “Cottage Cheese” on the roof? The lower half of the cab was blue, the top half was white and it had a red stripe around the middle. My late father bought it as his first artic after it was imported into Ireland and I would love to hear of any information about it or if it was part of a fleet or better still any photos.