On the train back from Whitstable on Sunday (on which there were at least half a dozen bikes), there was a classic Guerciotti. Early 80s, at a guess, and in good condition.
Yesterday, I saw a smart looking, if tatty, silver mixte being wheeled along by a woman. I was surprised to find out it was an Allin. I'm not sure of the history, but I think it must be 1970s at the latest.