Class 11
0-6-0 350HP diesel shunter
Originally built by the LMS, British Railways continued to build the class from 1948 to 1952, using numbers M7130–M7131 and 12045–12138.
7120–7129 and M7130–M7131 became BR numbers 12033–12044.
The whole class of 12033–12138 became Class 11.
Locomotives up to 12102 were built at LMS/BR Derby and 12103–12138 at BR Darlington.