This article is rated Start-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects:

Trains: in UK / Locomotives Low‑importance Trains Portal This article is within the scope of WikiProject Trains, an attempt to build a comprehensive and detailed guide to rail transport on Wikipedia. If you would like to participate, you can visit the project page, where you can join the project and/or contribute to the discussion. See also: WikiProject Trains to do list and the Trains Portal.TrainsWikipedia:WikiProject TrainsTemplate:WikiProject Trainsrail transport articles Low This article has been rated as Low-importance on the project's importance scale. Associated projects or task forces: /  This article is supported by WikiProject UK Railways (assessed as Low-importance). This article is supported by the Locomotives task force. This article lacks sufficient references and/or adequate inline citations.

OK, so some were rebuilt in 1923, but when were they originally introduced? How can this article be missing such a vital (and obviously required) piece of information?

EdJogg 11:59, 19 June 2007 (UTC) reply

That is a good point. The table of individual locos show that (ignoring North Star) they were introduced at the rate of one a month starting February 1907. North Star was built 1906 but it was always non-standard and for the first year or so acted as a test bed. So I'm going to add "introduced from early 1907" to the introduction. OrewaTel ( talk) 09:39, 13 June 2020 (UTC) reply