On their homepage they offer an ilustrated book about the history of the shortline. Found this impressive picture of the little porter double traction there:
http://www.steamtrainhuntsville.com/details.html < Link To http://www.steamtrainhuntsville.com/details.html < Link To Huntsville
Have Fun
Juergen / Otter 1

http://www.steamtrainhuntsville.com/details.html < Link To http://www.steamtrainhuntsville.com/details.html < Link To Huntsville
Have Fun
Juergen / Otter 1