7S-010-014D Terrier A1 734 LSWR Green - Steam Tank Locomotive - DCC FittedThe London, Brighton and South Coast Railway (LB&SCR) A1 Class is an English class of 0 6 0T steam locomotive. Designed by William Stroudley, 50 members of the class were built in 1872 and between 1874 and 1880, all at Brighton Works. The class has received several nicknames, initially being known as "Rooters" by their south London crews. However, the engines were more famously known as "Terriers" on account of the distinctive 'bark' of the exhaust