Fantastic work! Really does get me thinking for my large n guage layout plans...you've put a spanner in the works because now I want a coal mine with 56's n MGR's!
As if it wasn't bad enough that I'm off for a weekend at the pontypool and blaenavon railway this weekend, which I'm sure will lead me to the Big pit for some photos.
Thanks for reminding me how much I love coal mines!
Will be following your progress for sure!
Regards
Lee