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Instead of the normal manually filled resevoir, the Rapidograph uses capillary cartridges. This pen is a precision technical instrument for the professional draughtsman.
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The Isograph has the same qualities as the Rapidograph except ink is replaced manually using the resevoir provided. A precision technical pen.
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Rapidograph Capillary Cartridges
A box of 3 capillary ink cartridges for Rapidograph Pens. These inks are ideal for tracing paper, vellum and lineboard.
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23ml bottled Isograph refill ink. These inks are ideal for tracing paper, vellum and lineboard.