[2] 21 survived to become part of the London, Midland and Scottish Railway (LMS) fleet of engines in 1923.

In September 1930, the LMS recognised the significance of the class and number 156 itself was ear-marked for preservation.

[5][6] The locomotive was preserved at Derby Works until being moved to the National Railway Museum.

[8] The surviving example is not in as built condition, being reboilered twice and having the front end rebuilt, and the current tender being taken from scrapped 700 Class No.

[9] This article relating to steam locomotives operated in the United Kingdom is a stub.