Apparently it was going to be 'the book' before the emphasis changed to study of the RSC 'type' rather than just a gazetteer (just!).
It's a stunning book and I'm tempted to see if I can get the gazetteer printed & bound professionally as long as they don't think I'm trying to break copyright. Can't digest all that in front of a PC screen. Many hours of winter reading coming up.
I got a mention in the acknowledgements :-D