Over here in Europe I was nominated to the BA Executive Club in 1978. This stayed good until the new arrangements for which we used to pay was launched. The same applied over at British Caledonian. The tiered level started much more recently, and BCAL (best 1st class I've ever flown - vintage Krug, and the FA changed into a long tartan dress to serve!) never really had them except for premium flyers which used to be identified by the Commercial Department as I recall. I remember the inception of "Business Class" and I thin, FTraveller that it was KLM who offered this area to Full Fare Flyers as they were known. As far as on board was concerned US carriers were wonderful in the 70s, TWA used to be wonderful on the North Atlantic. In those days all drinks and headsets in Economy had to be paid for. I still have my Flying Colonel plaque at home, thanks for letting me know what became of the scheme. Yes, Delta Sales division in London nominated me. Yes, they were wonderful times I am glad that I experienced them, but I still enjoy things now....plus ca change..
Paul