This is the latest in the very popular series of reprints of classic editions of the famous Ian Allan Publishing abc volumes from the late 1940s to 1960s which have been welcomed both by the generation of enthusiasts who used them when they first came out & also by those who were not around at the time. This reprint of a classic Ian Allan abc combined volume gives an exhaustive listing of all locomotives in operation on Britains railways in summer 1961 including all the steam locomotives still running before the wholesale withdrawals of the 1960s as well as all the diesel & electric locomotives & multiple-units then in operation.