Want to talk about Sir Arthur Heywood's 15" gauge railways? About modern day minimum gauge lines? Have you found a minimum gauge line you've not seen mentioned on the website? Want directions to one of the railways that is mentioned? Whatever your interest in real minimum gauge lines, post your questions (and answer other modellers' questions) here.
Looks to me like of of Col. Tyrrell's lines beside the Romney, Hythe and Dymchurch, there were a couple, one was on the abandoned curve in the RHDR formation at New Romney (near the sheds). I think the locomotive was called 'Atlanta' or similar.
There are details in one of the RHDR books but at this time I can't think which one to check!