The Hall class 4-6-0, itself a development of the celebrated Saint class, represents the precursor of thousands of mixed traffic 4-6-0 engines that were built for Britain's railways and were the breadwinners in all types of work and conditions. The 328 examples of the Hall class and the Modified Hall class powered Britain through the Second World War, as well as providing the bulk of the revenue-earning services on both the GWR and BR. We are fortunate that both Halls and Modified Halls survived into preservation and their proud story continues with an assured future on many heritage lines.