Instead of the normal manually filled resevoir, the Rapidograph uses capillary cartridges. This pen is a precision technical instrument for the professional draughtsman.

The Isograph has the same qualities as the Rapidograph except ink is replaced manually using the resevoir provided. A precision technical pen.

A box of 3 capillary ink cartridges for Rapidograph Pens. These inks are ideal for tracing paper, vellum and lineboard.

23ml bottled Isograph refill ink. These inks are ideal for tracing paper, vellum and lineboard.