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Brand: KOH-I-NOOR
A set of 12 HB grade 2mm by 120mm pencil leads for mechanical pencils . During the Napoleonic wars a shortage of high quality Cumbrian graphite throughout continental Europe pushed Joseph Hardtmuth to develop a pencil lead made from powdered graphite mixed with clay and in so doing created the very ..
£2.50
Ex Tax:£2.08
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