Hello Oudeis
You have me intrigued. I have actually asked around as I know a number of NW miners and a few ex-officals but many of the Liverpool groups dealt with collieries outside the area. I have got stuff from Deeside, Liverpool 8, Dingle, Liverpool Polytechnic, Ellesmere Port and a few other groups but will keep looking.
Let me know if the more 'direct route' is successful.
Much appreciation. Paul