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Mae Casglu'r Tlysau yn cynnwys dros 30,000 o ddelweddau o wrthrychau, llyfrau, llythyrau, awyrluniau ac eitemau eraill o amgueddfeydd, archifdai a llyfrgelloedd ledled Cymru.

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Nawr gallwch chwilio am dlysau Cymru yn ddaearyddol gan ddefnyddio enwau lleoedd.

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Hafan » Cyfranwyr » Amgueddfa Glofa Cefn Coed
Pay ticket from Cefn Coed Colliery
Cefn Coed Colliery, 1926
Cefn Coed Colliery, 1931
  • At the top of the ladder stands Captain Haydn Rees, the man in charge of the sinking works.
Removing the sinking sheave, Cefn Coed Colliery, c. 1932
Building the Worsley Mesnes winding engine, Cefn Coed Colliery, c. 1927
  • This photograph of Cefn Coed Colliery shows many buildings which have since been demolished. Still visible - and visitable - today is the chimney, two head frames, winding house and boiler room.
Cefn Coed Colliery, c. 1955