Churchward proposed a 5ft 8in wheeled 4-6-0 for mixed traffic duties in 1901 and it was seriously considered in 1905, but it took until 1936 before his successor, Charles Collett, realised the plan by persuading the GWR Board to replace many of the 43XX moguls with modern standard mixed traffic engines that bore a remarkable likeness to the Churchward proposal. David Maidment has written another in his series of 'Locomotive Portfolios' for Pen & Sword...