Vol.1 of a manuscript of the history of Penrhyn...
Vol.2 of a manuscript of the history of Penrhyn...
Vol.1 (transcription) of a manuscript of the...
Vol.2 (transcription) of a manuscript of the...
Index pages of a manuscript of the history of...
A collection of photographs of Merched y Wawr,...
Glynllifon Food and Crafts Festival 16 November...
Visit to Llechwedd and Bounce Below 29/9/19
Memories of Dyffryn Nantlle, John Gruffydd...
Memories of Dyffryn Nantlle (3)
Shed, slate mill, Aberllefenni quarry
Viewn from winding house ruin, Aberllefenni quarry
Lecture by Lord Dafydd Wigley, 'Battle for...
Rhiwgreiddyn slate quarry
View of Ceinws / Esgairgeiliog from the slate...
Era quarry slate mill complex
Oak Tree below Rhiwgreiddyn quarry
Rhiwgreiddyn slate quarry Ceinws/ Esgairgeilliog
Aberllefenni slate quarry 2015
Aberllefenni slate quarry
Aberllefenni slate quarry 2007
