[delwedd: Amdanom ni]
[delwedd: Coal miners, Glynneath (b/w photo)]
[delwedd: William Philby on his first day at BIg Pit (b/w photo)]
[delwedd: Ebbw Vale steelworks (b/w photo)]
[delwedd: Clayton tinplate works, Pontardulais, 1957 (b/w photo)]
[delwedd: Dowlais Ironworks 1840 (w/c on paper)]
[delwedd: Working in the Gwery Cae seam, Sirhow No 7, 1898 (b/w photo)]
[delwedd: Drilling by hand on a platform, Penrhyn Slate quarry (b/w photo)]
[delwedd: Coal picking (b/w photo)]
