O-gauge "Bat" part-built with tender

In the recent move I found this engine - knew I had it somewhere, it had ended up in a 7 1/4 inch gauge Hunslet's tender so hadn't been spotted for a few months.

O-gauge 4-4-0 to LBSC's "BAT" design, based on the Southern Railway's "Schools" class. Complete rolling chassis with cylinders, slide valves actuated by Stephenson's valve gear with screw reverser, largely complete coal-fired boiler and smokebox assembly, complete tender which may have come from another project.

Drawings are still available from Tee Publishing.