https://www.youtube.com/watch?v=F6VN6nhZX30&feature=em-uploademail
Cool, I don't think I'd seen that before.
If you have any interests in the subject, I strongly recommend this book: http://www.amazon.com/Narrow-gauge-mans-land-railways/dp/0961546727 (http://www.amazon.com/Narrow-gauge-mans-land-railways/dp/0961546727)