Recommend their September Open Day (ticket only). Several traction engines, all working pulling loads etc. The railway running several steam engines all day. There was a film on u-tube of Stig and Pedler on a load working around the field, taken by a TT member taken two years ago. (highly recommended viewing)
The unidentified Traction Engine from Australia was a Ruston Proctor, according to a notice on the works door, I couldn't find anybody who knew the works number though.