These cookies are absolutely essential for our website to function properly.
We use Google Analytics to measure how you use the website so we can improve it based on user needs.
These cookies may be set by third party websites and do things like measure how you view YouTube videos.
Amgueddfa Cymru – Museum Wales
National Coal Board Scientific Department report written following an ''investigation into the amount of large coal degradation occuring at transfer and loading points underground and at surface screens at Big Pit''. Dated September 1960. 8 page report with two pull out plans. Grey covers with blue spine.
