Due to fire risk the return steam special from Marylebone to Birmingham Moor Street was piloted by WCRC class 47 diesel No. 47245, with 5043 "Earl of Mount Edgcumbe" as the train engine. 1Z50 had departed from Marylebone on time at 17:20 and has now stopped in the through road at Princes Risborough to allow a northbound Chiltern service to overtake it, as planned. 168 108 has just started away from its stop with 1R51, the 17:36 from Marylebone to Birmingham Moor Street and the special soon followed in its tracks. 18:13, Saturday 6th April 2013. Digital Image No. GMPI14775.