GWR No. 1340 is an 0-4-0ST steam locomotive, built in 1897 (Works No. 1386) by the Avonside Engine Company of Bristol, England. Its first owners were Messrs Dunn & Shute of Newport Town Dock. In 1903 it was purchased by the Alexandra Docks Railway. This was absorbed into the Great Western Railway in 1923. In July 1932, the GWR sold it to the Netherseal colliery, Burton-on-Trent. It changed hands again in 1947, going to Alders (Tamworth) Ltd.3

Trojan is now preserved at the Didcot Railway Centre. It was restored to working order in 2002 and remained in service on demonstration trains at Didcot until 2011 when it was withdrawn for a ten-yearly overhaul. Trojan was moved offsite in 2016 for the overhaul to take place and returned in 2021.