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X/Dorothea/520

1 file of price lists for: 1. 1917-1918: Penrhyn Slate Quarry; 2. 1917-1918: Dorothea Slate Quarries; 3. 1914: Gwalia Slate Co.; 4. 1914: Gloddfa’rlon Slate Quarry; 5. 1914: Gwernor Slate Quarry, Nantlle; 6. 1919: Abergynolwyn Slate & Slab Co.; 7. 1917-1918: Alexandra Slate Co.; 8. 1918-1919: Amalgamate Slate Association Ltd.; 9. 1914-1920: Angers Slate Co.; France and their agents; 10. 1913-1919: Burlington Slate Quarries, Kirkby in Furness; 11. 1916-1918: Cilgwyn; 12. 1917-1919: Craig Ddu Slate Quarry, Blaenau Ffestiniog; 13. 1917-1919: Dinorwic Quarry; 14. 1916-1920: Dorothea Quarry; 15. 1916-1919: J.W. Greaves; 16. 1917-1919: Gwalia Slate Quarry; 17. 1917: Humphries, Blaenau Ffestiniog; 18. 1917-1919: J. Edwards Jones, Gernant, Caernarfon.