Trafodaeth ar ddarganfod creiriau trwy ddefnyddio peiriannau datgelu metel. Dylan Iorwerth and guests discuss the use of metal detectors to discover relics. Show more
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Trafodaeth ar ddarganfod creiriau trwy ddefnyddio peiriannau datgelu metel. Dylan Iorwerth and guests discuss the use of metal detectors to discover relics. Show more