Liskeard Museum on Twitter: "The cylindrical or 'planetary' pencil sharpener was first developed in Chicago in 1896, offering an alternative to the traditional 'prism' models that were prone to breaking pencil leads. [
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Maped - The ecologically Sustainable Smiling Planet Pencil Sharpener for 2 Pen Sizes with Collection Box - Made from Wood Fibre Composite: 50% Recycled Plastic and 50% FSC-Certified Wood Fibre: Pens, Pencils
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