Pori'r archifau

X/Dorothea/519

1 file of slate price lists for: 1. 1907-1913: Penrhyn Quarries; 2. 1910: Davies Brothers; 3. 1910: Oakeley Quarries; 4. 1908 & 1909: Carn; 5. 1910-1916: Angers; 6. 1910: Aber Llefni (near Machynlleth); 7. 1909-1916: Alexandra; 8. 1910-1916: Cilgwyn; 9. 1914: Craig Ddu Slate Quarry; 10. 1910-1916: Dinorwic Quarries; 11. 1910-1916: Dorothea Quarries; 12. 1910-1913: Glynrhonwy; 13. 1910-1916: Greaves & Son; 14. 1911: Gwernor; 15. 1916: J. Edward Jones; 16. 1910-1916: Llanberis Slate Quarries; 17. 1910-1912: Maen Offeren Slate Quarries; 18. 1909-1913: Moeltryfan Slate & Slab Co., Ltd.; 19. 1910-1911: New Braich Slate Quarry, Ltd.; 20. 1911-1912: New Vronheulog Slate Quarry; 21. 1910-1915: Oakeley Slate Quarry; 22. 1912: Old Delabole Slate Quarry, Cornwall; 23. 1910-1916: Penrhyn Slate Quarry; 24. 1910-1916: Penyrorsedd Slate Quarry; 25. 1910-1911: Rhiw Bach Quarry; Blaenau Ffestiniog; 26. 1910-1916: South Dorothea; 27. 1910-1916: Talysarn Quarry; 28. 1912-1913: Upper Glynrhonwy Slate Quarry.