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  Unable to get graphite from England because of the war, Conté in Paris produces artificial graphite. Borrowdale Graphite is no longer unique.
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  William Monroe in US invented a machine capable of making groves in wooden slats for making pencils.
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  Greenwood family take over the pencil factory as payment for a bad debt.
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  Name of the company is changed to Cumberland Pencil Co.
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  Company taken over by British Pens Ltd & start building the current factory.
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  Four factories recorded in Keswick.
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  DES memo 2/65 set out limitations on use of heavy metals in pencils supplied to schools.
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  Pencil & Graphic Instruments Safety regulations - safety limit set on use of heavy metals in all pencils.
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  Taken over by Twinlock and renamed Cumberland Graphics
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  Taken over by Rexel.
Development of Graphic & Studio ranges. - 
  
  Rexel taken over by American Brands.
Cumberland Pencil Museum opens. - 
  
  Developed Derwent Sketching & Drawing pencils
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  New softer Derwent Pastel Pencils are launched