Hi Greg,
Your nice find looks like a Hornby MO clockwork passenger set. Post War. Although the entry level set for Hornby, they actually ran very well, probably doing 80 to 100 feet on a wind.
Just be careful the first time you run it. Do a half wind run, then a three quarter wind run before doing a full wind run. Doing a full wind run first time is say 60-70 years could cause the spring to break.
Enjoy! 'Hornby - British and Guaranteed'
Cheers Pete