The engine made for a very unusual toy - being quite an advanced for the market at the time, with a internally fired boiler, a gas burner and fixed cylinders. Extensive use of plastic was made in the model with the track, tender and even the gas tank being made from plastic. After a few years, the plastic gas tank would go brittle often leading to leaks and fire damaged tenders.
The track is in interesting design made up from small sections shaped like a straightened out 'Z'. One 'leg' of each 'Z' is longer than the other, meaning when joined in an opposing pattern, a straight section of track is produced but when placed together produce a curved shape to the track.
It was a shame the model never took off and the range continued, I read somewhere that there were plans afoot to produce the entire set of entrants for the Rainhill Trials - how on earth they'd have got a horse suitable for 3 1/2" gauge to power Brandreth's 'Cycloped' I do not know!
Must have been quite something in 1829.
More photos at our flickr account.