The following numbers have been issued by the Rolling Stock Library (RSL) for privately owned steam locomotives. The third digit represents the power classification & the last two digits the final two digits of the historic number, except where duplication occurs. A number of locos have been registered on the RSL for the transfer to or from a location where road access is difficult and therefore there may the need for a short shunt by rail, e.g. Didcot Railway Centre and Eastleigh Works. It should be noted that there are a number of preserved "Industrial Locomotives" which have been registered on TOPS. Members are welcome to send any alterations and comments to Norman Hayllar.