A group of miners from the morning shift pose for their photo in a coal seam at Baldwin's Level, Pontypool, South Wales. c 1912
Two coalface workers at Baldwin's Level near Pontypool South Wales c 1910
Miners Returning to Daylight, South Wales, c. 1931-1935
The last dram of coal leaving Wattstown colliery, 1968.
The 1960s saw the development of new 'super pits' at Abernant, Brynlliw and Cynheidre Collieries as well as the reorganisation of existing collieries such as Coegnant, Deep Navigation and Merthyr Vale
Workers outside Lewis Merthyr Colliery, 1947.
The noticeboard reads: 'This colliery is now managed by the National Coal Board on behalf of the people'.