The Dublin and South Eastern Railway (DSER), often referred to as the Slow and Easy, was an Irish gauge (1,600 mm (5 ft 3 in)) railway in Ireland from 1846 to 1925. It carried 4,626,226 passengers in 1911. It was the fourth largest railway operation in Ireland operating a main line from Dublin to Wexford, with branch lines to Shillelagh and Waterford. The company previously traded under the names Waterford, Wexford, Wicklow & Dublin Railway (WWW&DR or 3WS) to 1848, Dublin and Wicklow Raillway (D&WR) to 1860 and Dublin, Wicklow and Wexford Railway (DW&WR) until 1906.