Correct, I carried on working until I was 67, but from my 65th birthday my national insurance contributions stopped. When I left at 45 I commuted the max, then at 55 my pension was indexed linked. But that was under the 75 rules, dont know if it changed. But at the ripe old age of 70 I consider myself very comfortably off.
A lot depends if you opted out of serps etc, I get £175 per week state pension on top of my mil pension, as serps was taken into consideration until I believe 1975 when we were all removed from it, so my 10 years of contributions to it counted