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b3tarev3: seam
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b3tarev3: gang2
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b3tarev3: gang
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b3tarev3: manx1
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b3tarev3: ochre tide
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b3tarev3: Coal seam angle
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b3tarev3: haulage way
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b3tarev3: candle holder
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b3tarev3: archway
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b3tarev3: Haulage level
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b3tarev3: Haulage level
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b3tarev3: Haulage level
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b3tarev3: Haulage level
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b3tarev3: Haulage level
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b3tarev3: Haulage level
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b3tarev3: Haulage level
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b3tarev3: Haulage level
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b3tarev3: Haulage level
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b3tarev3: Haulage level
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b3tarev3: Heading
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b3tarev3: Union Seam
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b3tarev3: Union Seam
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b3tarev3: Props
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b3tarev3: Props
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b3tarev3: Props
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b3tarev3: 19th Century Yaarkshire Coal
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b3tarev3: 19th Century Yaarkshire Coal
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b3tarev3: 19th Century Yaarkshire Coal
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b3tarev3: 19th Century Yaarkshire Coal
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b3tarev3: 19th Century Yaarkshire Coal