• Cymraeg
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    Digital copy of an acetate negative showing demarcation line between Oakdale and Markham Collieries, from the John Cornwell Collection.Further Information
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    NPRNTitleType Of SiteCollectionsImages
    NPRN33574TitleOakdale CollieryType Of SiteCOAL MINECollections134Images57
    NPRN33573TitleMarkham CollieryType Of SiteCOAL MINECollections3Images2