I don't know if Britain ever really achieved that much glamour. We had post-war austerity rather than post-war prosperity, and our cultural products of the time include some pretty dour kitchen-sink dramas of the A Kind of Loving variety. (This kind of film seems disillusioned with the sixties before they've even really begun.)
We're all more or less interested in the 'swinging sixties', of course, but that's not what I mean. I'm interested in the particular naive glamour that clings to the post-war and pre-Hendrix era.
Speaking of [Philip] Larkin, in his poem about the First World War he wrote something like, "Never such innocence, before or since, that turned itself to past without a word".
