The December 1968 issue of the Model Railway News marked the start of a series of over 20 articles and drawings by the Colonel Stephen's Society's President Les Darbyshire. 

Articles reproduced with the kind permission of Les Darbyshire who gives the following health warning that extra information that has turned up in the last 40 years means that some inaccuracies have been found.  The most serious is the Pickering railcar, which is over a foot wider than the drawing shows.