Designed by G.J. Churchward, no. 40 was constructed at Swindon in April 1906\. It was Swindons first 4 cylinder simple engine and was the forerunner of Churchwards famous 4 cylinder Star Class 4-6-0s. Initially built as a 4-4-2 Atlantic, no. 40 was named North Star in September 1906, rebuilt as a 4-6-0 in 1909, and renumbered 4000 in 1913. Including no. 40, the Star class eventually numbered seventy-three locomotives, all built at Swindon in batches...