The first loco in the clip has the body of a Hornby postwar 0-4-0 tank-locomotive but it has the mechanism of an electric 0-4-0 (it is not one of my locos). I do have the clockwork version, also in LNER and LMS, and they still run:
https://www.youtube.com/watch?v=87wHKiADgxA
Regards
Fred