Similar in appearance to the LMS Tube, but longer at 32ft. oh with a wb of 18ft. 6in. The first batch of 450 were built unfitted, but most were rebuilt VB. A total of 2350 were built, some had extended height, and the Engineers branded some as 'COD'. The variety of TOPS codes is noteworthy. Parkside Dundas make a 4mm kit for this, although they misdescribe it as diag 1/447. In 7mm the only model I know is by D A Model Engineering - beautiful castings.