Carlton Capella lugs were introduced around 1959 or 60, the exact date is to be found on the Carlton Cycles website. They offered a couple bikes with those lugs in the early sixties; I think forum member Grand Bois has one of those.
Well, I stand corrected. 1958 it was:
http://www.carltoncycles.me.uk/details/lugwork-p.htm
My apologies, muzpuf.
At least two years and three models worth of lugs is a lot of lugs to have lying around, though. It is possible, I guess, but it seems like a lot.
