The Great Eastern Railway was formed on 1 August 1862, when the Eastern Counties Railway changed its name.
The ECR had originally been built to 5 ft (1,524 mm) gauge, was converted to 4 ft 8+1⁄2 in (1,435 mm) standard gauge in September and October 1844.
[1] In addition to these, there is another locomotive under construction as of 2024: A replica of GER Class M15 2-4-2T No.
789 (LNER 7789, 7218/BR 67218).
It is being built at Tyseley Locomotive Works in Birmingham.