Having lost my Ian Allan ABCs from the 1956/57 period, I don't know what locos I saw at Tilehurst (Reading) for that period; I know I only needed four 'Kings', but I'm bu**ered if I know WHICH four. The ONLY loco I can be sure of having seen was the very distinctive GT 18000, which passed Scours Lane sports field on our school's sports day around summer 1957. Let's hear it for locos with BIG numbers!
