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1Rhif Galw: 1849/1Erthygl
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2Rhif Galw: 1849/1Erthygl
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3Rhif Galw: 1849/1Erthygl
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4Rhif Galw: 1849/1Erthygl
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5Rhif Galw: 1849/1Erthygl
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6Rhif Galw: 1849/1Erthygl
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7Rhif Galw: 1849/1Erthygl