Cyfarwyddiadau ar gyfer defnyddio baddonau pen pwll, c.1930 Math Eitemau Uwchlwytho gan Archifau Morgannwg
Tender for sinking the Shaft at the Empire Colliery Math Eitemau Uwchlwytho gan Photograph Collection of W.E. Bowen.
Dissertation on Pentreclwydau Colliery ~ by Mr. Michael Cole. Math Eitemau Uwchlwytho gan Photograph Collection of W.E. Bowen.
Gary Jones, memories of Cwmgwrach (part one) Math Eitemau Uwchlwytho gan Photograph Collection of W.E. Bowen.
Bristol City Police in the Rhondda Valley Math Eitemau Uwchlwytho gan Ross Mather Police Memorabilia of Wales Collection
Hook Mine - brief information on Hook Colliery Pembrokeshire Math Eitemau Uwchlwytho gan Llangwm Local History Society
Geographical and Geological Maps, Hook, Pembrokeshire Math Eitemau Uwchlwytho gan Hook History Society
Streic y Glowyr 1911 Cymoedd y Rhondda Math Eitemau Uwchlwytho gan Ross Mather Police Memorabilia of Wales Collection
Presentation truncheons. Tonypandy Riots Math Eitemau Uwchlwytho gan Ross Mather Police Memorabilia of Wales Collection
