Thanks all - yes, it's got a frame number on the rear dropout - went to my Dads garage to take a picture of it today, but brought the wrong lens. I've only got to go out on it once, and I'm badly, badly out of shape - but it felt very quick, tight and responsive for an older frame.
I've used some traditional wooden-soled shoes in the traps, but I have to confess to preferring the Shimano SPD-SL pedals I usually use; I might have to sacrifice a little style for comfort.
Additionally, the Rolls saddle is ok, but I do prefer my Brooks leather hammocks. I might try and see what a Brooks Swallow would look like on it, but this would stop it becoming an 'all-Italian'.
In regard to the assumed re-spray - I'd rather it if it were original, but I'm aware that would be likely to carry a premium. A re-spray of decent quality can cost a good couple of hundred quid though, which is better for me than it being knackered!