Triang/Hornby R423A OO Gauge LMS Maroon Mk 1 Brake Coach. The carriage seems to have had the side panels replaced with wooden panels rather than the original crimson plastic. LMS No 31250 Parcel Van Bachmann, the box is not original & for a different model.
This product would be a great fit for model train enthusiasts looking for a detailed and functional addition to their collection of Bachmann engines.