Oh. Thanks, relex109 - but I'm giving devon_metro the benefit of the doubt, here: he lives in south Devon, so he knows it's not on his local preserved line.
As I was just about to post:
No, sorry, grahame - I've discounted the Paignton - Kingswear line, if only because Liam would have shouted 'house!' by now, if it was anywhere on that line!
Liam - by the way - do you have a clue? (In exchange for a National Rail Travel Voucher, perhaps?)
Chris