I went to Cornwall last weekend and spent Friday afternoon in the Cornwall Record Office. It was not very productive at all and I found nothing new on the Bodmin Stop LIne. I couldn't even find the documents refrered to in 'Cornwall at War' by Hancock. I also looked at some of the major points on the line but they have been changed by road widening etc. Photos of a surviving pill box are here: Flickr: skoyen89's Photostream The search goes on!