I also have a 1990 24D (T01) which is lovely and feels very well engineered.
I seem to remember spotting a while ago that the 240 / Eleven were now made in China. Not necessarily a bad thing and I've seen the odd review or two reporting that the 240 is a sweet, accurate little thing.
P.S. I've just been looking at some images on line and, although I wouldn't say it's conclusive, from those images it would seem that the 240 is built in Germany and the Eleven in China.