Henry Taylor o Flaenafon gyda gweithwyr yn Hughesovka, 1890au. Math Eitemau Uwchlwytho gan Amgueddfa Cymru
John Davies of Talsarnau, Gwynedd, with his brother and friend seeking gold during the Australian Gold Rush Math Eitemau Uwchlwytho gan Amgueddfa Cymru
Cardiff: the port transformed. Modern retail developments now stand where Cardiff once exported coal to the world. Math Eitemau Uwchlwytho gan Amgueddfa Cymru
The age of depression. Laid-up ships in Cardiff docks about 1930. Math Eitemau Uwchlwytho gan Amgueddfa Cymru
A typical Cardiff tramp steamer - the SS Pontwen, built in 1914. Math Eitemau Uwchlwytho gan Amgueddfa Cymru
Cardiff: the industrial port. An aerial view showing the completed dock system about 1948. Math Eitemau Uwchlwytho gan Amgueddfa Cymru
Cardiff: the pre-industrial port. Two sloops lying in the River Taff, as portrayed by Paul Sandby in 1776. Math Eitemau Uwchlwytho gan Amgueddfa Cymru
Another bitterly fought industrial dispute was the Cambrian Colliery lock-out of 1912 in the Rhondda Fawr. Math Eitemau Uwchlwytho gan Amgueddfa Cymru
Quarrymen splitting a large block of slate in the Dinorwig Quarry, about 1920. Math Eitemau Uwchlwytho gan Amgueddfa Cymru
The archetypal image of industrial Wales - the Lewis Merthyr colliery in the Rhondda valley, about 1910. Math Eitemau Uwchlwytho gan Amgueddfa Cymru
Bando stick from around 1845, belonging to Thomas Thomas, a member of the Margam Bando Boys Math Eitemau Uwchlwytho gan Amgueddfa Cymru