Manchester South junction and Altrincham Railway no.1, built 1849, a very close relative to the CB&PR tanks
The GS&WR had tender versions as their express passenger fleet at the time (note the earlier cast style dome), along with the Bury Curtis and Kennedy locos;
...Just for fun, the original engines of the Jamaica Railway were outside cylinder versions;
All the above of course built by the Sharp Brothers /Sharp Roberts/ Sharp Stewart