Bryn-Eirian, Porthmadog,
Bryn-Eirian, Porthmadog,
Brynmelyn Methodist Chapel, Tremadog,
Brynmelyn Methodist Chapel, Tremadog,
Bugail Slate Company Limited,
Bugail Slate Company Limited,
Business papers,
Business papers,
Caernarfonshire Quarter Sessions,
Caernarfonshire Quarter Sessions,
Cash account book,
Cash account book,
Cash book and subsistence lists,
Cash book and subsistence lists,
Cash book,
Cash book,
Cash book,
Cash book,
Conveyance of common slates,
Conveyance of common slates,
Correspondence,
Correspondence,
Cwm Llefrith Copper Mine,
Cwm Llefrith Copper Mine,
Davies Brothers price lists,
Davies Brothers price lists,
Davies Brothers,
Davies Brothers,
Daybook,
Daybook,
Department of Building Materials Supply,
Department of Building Materials Supply,
Diphwys Slate Quarry Company Limited,
Diphwys Slate Quarry Company Limited,
Directors attendance book,
Directors attendance book,
Directors' reports,
Directors' reports,
Directors' reports,
Directors' reports,
