1980s Silverwood Colliery Promotional Film 

I uncovered this film gathering dust on VHS and can't quite remember where I got it from.
It's a corporate video produced in the late 1980s to promote Silverwood Colliery. I'm guessing it was made in around 1989 or 1990, ahead of the pit closure programme of the early 1990s that eventually saw the pit cease production and close down for good.
Once you get past the corporate speak it gives an interesting view of the pit above and below ground, and provides a nostalgic look back on the coal mining history of this area.