Copying pencil
A pencil whose lead contains a dye so that its stroke is indelible
A copying pencil, also an indelible pencil or chemical pencil, is a pencil whose lead contains a dye. The lead is fabricated by adding a dry water-soluble permanent dye to powdered graphite—used in standard graphite pencils—before binding the mixture with clay.
Nº Q1435099 ★★
Uncommon · Knowledge
Copying pencil
A pencil whose lead contains a dye so that its stroke is indelible
A copying pencil, also an indelible pencil or chemical pencil, is a pencil whose lead contains a dye. The lead is fabricated by adding a dry water-soluble permanent dye to powdered graphite—used in standard graphite pencils—before binding the mixture with clay.
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No sales yet.
Anonymous sales: no buyer or seller shown. Figures count player-to-player sales only.
From Wikipedia
A copying pencil, also an indelible pencil or chemical pencil, is a pencil whose lead contains a dye. The lead is fabricated by adding a dry water-soluble permanent dye to powdered graphite—used in standard graphite pencils—before binding the mixture with clay.
Text: Wikipédia, CC BY-SA 4.0. · Image: Anton J Gamel (CC BY-SA 2.0 de) ·
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