The Dublin, Wicklow and Wexford Railway(Later named the Dublin and South Eastern Railway and a new livery in 1907) was approached by the London and North Western Railway who were selling six 4ft 6in Tank Engines in 1902, the DWWR agreed on the sale and the LNWR converted the engines to 5ft 3in Gauge at Crewe. Originally the engines had been built at Crewe as 2-4-0T in 1877 but converted to 2-4-2T in 1896. When the engines arrived they were the only engines to have Allan's Straight Link Valve Gear however drivers were not happy with them saying the old single tank engines were better. The engines were based at Bray and worked on the Harcourt Line. By 1913, five of the six engines were being stored a Bray as they weren't getting used and so five were sold in 1916 to British Companies who were lacking motive power due to WW1. The remaining DSER XXV was No.64 who was rebuilt at Grand Canal Street Dublin in 1914 and was used as the second train for Carlisle Pier. With the outbreak of the Irish Civil War, No.64 was fitted with armoured plating in 1923 and was used as an armoured train by the Pro-Treaty Forces on the GS&WR's Killarney Branch with the name Faugh-a-Ballagh painted on its sides, meaning Clear the Way in the Irish language. The train returned after some repaires were made in Tralee and the plated armour was removed later that year. No.64 survived into the Great Southern Railways in 1925 as F3 Class No.427 and was later sent to work the sidings at the Mallow Sugar Beet Factory in 1933 but after a brief move to Westport No.427 was withdrawn to Inchicore to serve boiler wash out duties till 1946. Includes AJS Script.