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    Digital copy of an acetate negative showing large group of miners and colliery officials at Ocean Deep Navigation Colliery, from the John Cornwell Collection.Digital copy of an acetate negative showing group of workers with "Ocean" coal wagon at Ocean Deep Navigation Colliery, from the John Cornwell Collection.Digital copy of an acetate negative showing bottom of up-cast shaft at Ocean Deep navigation Colliery, from the John Cornwell Collection.Digital copy of an acetate negative showing colliery machinery at Ocean Deep Navigation Colliery, from the John Cornwell Collection.Digital copy of an acetate negative showing screens and railway sidings, before modernisation of Ocean Deep Navigation Colliery from the John Cornwell Collection.Digital copy of an acetate negative showing down-cast shaft headframe at Ocean Deep Navigation  Colliery, before skip winding was installed, from the John Cornwell Collection.Digital copy of an acetate negative showing bottom of downcast shaft at Ocean Deep Navigation Colliery, from the John Cornwell Collection.Digital copy of an acetate negative showing group of three colliers at Ocean Deep navigation Colliery,  from the John Cornwell Collection.Digital copy of an acetate negative showing group of officials and colliers at Ocean Deep Navigation Colliery from the John Cornwell Collection.Digital copy of an acetate negative showing trams at pit bottom at Ocean Deep Navigation Colliery, from the John Cornwell Collection.

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