Slate price lists,
Slate price lists,
Davies Brothers price lists,
Davies Brothers price lists,
North Wales slate quarries price lists,
North Wales slate quarries price lists,
North Wales slate quarries price lists,
North Wales slate quarries price lists,
Whitland Abbey Gilfach Quarries,
Whitland Abbey Gilfach Quarries,
Production costs,
Production costs,
Balance sheets,
Balance sheets,
Accounts journal,
Accounts journal,
Use of foreign slate,
Use of foreign slate,
'Y Chwarelwr',
'Y Chwarelwr',
Ffestiniog District Slate Quarry Proprietors' Association,
Ffestiniog District Slate Quarry Proprietors' Association,
Slate exports to Ireland,
Slate exports to Ireland,
Photograph of the Association's exhibit at the British Empire Exhibition,
Photograph of the Association's exhibit at the British Empire Exhibition,
Hanes Chwarelau Ffestiniog,
Hanes Chwarelau Ffestiniog,
Boiler Explosions Act, 1882,
Boiler Explosions Act, 1882,
The Welsh Slate Industry = : Y Fasnach Llechi Gymreig,
The Welsh Slate Industry = : Y Fasnach Llechi Gymreig,
National Federation of Building Trades Employers,
National Federation of Building Trades Employers,
Personal papers,
Personal papers,
Letters,
Letters,
Political life,
Political life,
