| Ddisgrifiad / Description | Includes typed extract from journal article [1878]; handwritten notes on accessible resources of some [mid]Wales mines; report on undisclosed resources of the Eastern Section, East Snowdon Mines[2 copies]; report on the Gorse Shaft Ore body, Parc Mine; reports by Thomas Breakell and Edward T. McCarthy on the Pandora Lead & Blende Mine, the Llanrwst and Gorlan Lead and Blende Mine & the Hafna Lead & Zinc Mine [1919]; analysis of records for Carnarfon Consolidated Mining Leases [1938] [includes hand-written notes]. |