If you are all agog to know how I am getting on with the horizons project, then I am afraid I have bad news!
I am no further forward, despite the help and advice from Jane and Myfanwy.
First of all A2 Scanners seem to be as rare as hens teeth. A2 copiers - no problem - but scanners are a completely different matter.
Myfanwy suggested Kallkwik, but there isn't one in Milton Keynes (which is hard to believe) or Gosport (which is not so hard to believe).
I have been on the phone to reprographic companies, and today, well I thought I had cracked it. I found a firm that had an A2 scanner. So off I popped at lunch time, only to discover that I didn't have the right sort of original art work. Quite frankly, if I could explain the problem to you, then I would. But the guy lost me pretty early on in the explanation when he started to talk about glass rollers!
So, back to square one!
But, tomorrow is another day and there are more firms in the yellow pages to contact. Or I will have to scan using an A4 or A3 flat bed scanner and try to stitch the images together into one jpeg using Paint.Net.