Cyflwyniad 'Atgofion William John, Pant' i Gymdeithas Hanes Dyffryn Ogwen, 2024 Math Eitemau Uwchlwytho gan William John Roberts (1906-1982)
Chwarel y Penrhyn, gan W. J. Roberts Eitemau 5 items Math Casgliadau Uwchlwytho gan William John Roberts (1906-1982)
Cyf.1 o lawysgrif am hanes Chwarel Penrhyn, Bethesda, gan W. J. Roberts, c.1970 Math Eitemau Uwchlwytho gan William John Roberts (1906-1982)
Cyf.2 o lawysgrif am hanes Chwarel Penrhyn, Bethesda, gan W. J. Roberts, c.1970 Math Eitemau Uwchlwytho gan William John Roberts (1906-1982)
Cyf.1 (trawsgrifiad) o lawysgrif am hanes Chwarel Penrhyn, Bethesda, gan W. J. Roberts, c.1970 Math Eitemau Uwchlwytho gan William John Roberts (1906-1982)
Cyf.2 (trawsgrifiad) o lawysgrif am hanes Chwarel Penrhyn, Bethesda, gan W. J. Roberts, c.1970 Math Eitemau Uwchlwytho gan William John Roberts (1906-1982)
Tudalennau'r mynegai ar gyfer llawysgrif am hanes Chwarel Penrhyn, Bethesda, gan W. J. Roberts, c.1970 Math Eitemau Uwchlwytho gan William John Roberts (1906-1982)
Sandy Bay and Trecco Bay Caravan Site, Aerial Photograph 0033 Math Eitemau Uwchlwytho gan Llyfrgelloedd Bro Morgannwg
Material regarding quarry workers in the Penally area Pembrokeshire 1841 Math Eitemau Uwchlwytho gan Penally History Group
Material on the lime kilns at Blackrock quarries Penally Pembrokeshire Math Eitemau Uwchlwytho gan Penally History Group
Aerial view of old limestone quarry in Penally Pembrokeshire Math Eitemau Uwchlwytho gan Penally History Group
"A Report on Pembrokeshire Limestone and Limekilns" Math Eitemau Uwchlwytho gan Penally History Group
Notes regarding quarrying on Caldey Penally Pembrokeshire Math Eitemau Uwchlwytho gan Penally History Group
Notes regarding quarrying on Caldey Penally Pembrokeshire Math Eitemau Uwchlwytho gan Penally History Group
Notes from Pembrokeshire the Forgotten Coalfield Penally Pembrokeshire Math Eitemau Uwchlwytho gan Penally History Group
Reference notes on quarrying sources Penally Pembrokeshire Math Eitemau Uwchlwytho gan Penally History Group
Hand written notes on the Lime industry Penally Pembrokeshire Math Eitemau Uwchlwytho gan Penally History Group
What is Lime and How is it Prepared Penally Pembrokeshire Math Eitemau Uwchlwytho gan Penally History Group
Quarrying Industry in Wales. Area 6 Penally Pembrokeshire Math Eitemau Uwchlwytho gan Penally History Group
