coal mining

• 

  Oakdale Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Oakdale Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Oakdale Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Oakdale Colliery 1981

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Oakdale Colliery 1981

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Oakdale Colliery 1981

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Oakdale Colliery 1981

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Electric locomotive at Oakdale Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Oakdale Colliery 1981

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Oakdale Colliery 1981

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Oakdale Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Three pit heads in 1974

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Oakdale Colliery miners

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Oakdale Colliery miner

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Three pit heads in 1974

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Oakdale Colliery 1981

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Oakdale Colliery 1981

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Drilling rig at Oakdale Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Eimco machine at Oakdale Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Eimco machine at Oakdale Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Markham Colliery 1979

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Hafod Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Hafod Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Rescue team during the Gresford Colliery disaster 1934

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Gresford Colliery 1975

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Cwmdare Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Nine Mile Point Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Nantgwyn Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Gilfach Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales
• 

  Britannic Colliery

  Type Item

  Uploaded by Amgueddfa Cymru - Museum Wales