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Pont y Twll, Pwllpeiran
Mike Parker sy'n esbonio sut y bu i Thomas Johnes yr Hafod greu twyll yn y tirlun uwchben Cwmystwyth. Mike Parker explains how Thomas Johnes, Hafod, created a visual trick in Cwmystwyth.
Darllediad diwethaf
Sul 23 Meh 2019
11:55