The 1600 class was a pure GWR design but all 70 were built by the Western Region of British Railways. When the last member of the class was built in 1955 (1669) the basic design was over 80 years old. BR gave the 1600 class the power classification 2F. Service life was short, withdrawals started in 1959 and all were gone by 1966 with 1659 having the shortest service (built 1955, withdrawn 1960). Two were sold for further use to the National Coal Board: 1600 in 1959 (scrapped 1963), and 1607 in 1965 (scrapped 1970).
Whitehurst, Brian (1973). Great Western Engines, Names, Numbers, Types and Classes (1940 to Preservation). Oxford, UK: Oxford Publishing Company. pp. 18–19, 81, 101, 153. ISBN978-0-9028-8821-0. OCLC815661.