ExXB
Would that be the bright Orange with a Red swirl ones ? I never flew with CP Air as they had ceased operations, or were not going my way, but I do remember seeing them. Quite a startling early 70,s colour scheme similar to the Texan airline Baniff I think. But you have to remember back then you got China and Silver Service on most large carriers in Y - definitely on BCAL anyway.
I think it all started to change in the mid to late 80,s in Y class and the 90,s recession accelerated it and hence where we are today. But also look what you had to pay back then in real terms compared with todays prices !