Haulage engines underground at Britannia Colliery Type Item Uploaded by Amgueddfa Cymru - Museum Wales
Gullick chocks on standby at Lewis Merthyr Colliery Type Item Uploaded by Amgueddfa Cymru - Museum Wales
Installing Gullick chocks at Lewis Merthyr Colliery Type Item Uploaded by Amgueddfa Cymru - Museum Wales
Timbered longwall face at Lewis Merthyr Colliery Type Item Uploaded by Amgueddfa Cymru - Museum Wales
Installation of a new face at Lewis Merthyr Colliery Type Item Uploaded by Amgueddfa Cymru - Museum Wales
Downcast shaft and engine house at Lewis Merthyr Colliery Type Item Uploaded by Amgueddfa Cymru - Museum Wales