4S-010-004S A1X 2644 Southern Lined Green DCC Fitted & Sound FittedLocomotive background Information More formally known as the London, Brighton & South Coast (LB&SCR) A1 Class, this locomotive became affectionately known as the Terrier due to the distinct bark of the exhaust. The class was designed by William Stroudley and 50 were built between 1872 and 1880 at the Brighton Works in Sussex. The original workings of the locomotive on the main London Lines of the class were eventually displaced by newer and more