British Railways 21 ton mineral wagon to diagramme 1/110, built in a single lot (2190) of 1000 vehicles by Metropolitan Cammell in 1950/1 (reference D. Larkin, various titles including Wagons of the Early British Railways Era, and P. Bartlett, D. Larkin, T. Mann, R. Silsbury and A. Ward, in An Illustrated History of BR Wagons Volume One). The model is designed to fit a Parkside-Dundas 12 ft wheelbase chassis kit. This version of the model features the replacement, welded pattern end door fitted to many of these vehicles during their years of service. Please see the notes on the pressed end door version of this model. Thanks to Jeff LaMarche for his article on Preparing Blender Files for 3D Printing - Shapeways, the rivets on my models now routinely survive the upload and are suitably visible on the delivered prints, contributing nicely, I think, to the overall appearance after painting and weathering.