Carbon Room

View of the Carbon Room - Washing Bowls - picture undated

View of the Carbon Room - Washing Bowls - picture undated

View of the Carbon Room - Washing Bowls and Furnace at left rear - picture undated

View of the Carbon Room - Electric Furnace - picture undated

Anthracite, prepared for processing, shown alongside "Carbon Granules" ready for use in inset Transmitters. Picture dated 1949

David Simpson, engaged upon the washing stage in the manufacture of carbon granules. Picture dated 1949

Mrs A. Dynstee, hand sieving carbon granules after the final firing. Picture dated 1949

David Simpson, loading oven with crucibles of Anthracite for the first firing. Picture dated 1949

David Simpson, removing crucible of carbon granules from electric furnace after final firing. Picture dated 1949

David Simpson, placing the carbon granules in the centrifuge for rapid drying. Picture dated 1949

Mrs Dynstie empties crushed Anthracite on to a machine sieze for seperation into standard granule sizes

General view of Carbon Room showing Mr Findlay (Superintendant) in the foreground