The coloured barrels of these writing instruments consist of a very tough material. Each one is engraved separately with a guilloche pattern. After engraving, each individual barrel is hand finished during a series of lacquering and polishing stages. The barrel of the all-metal version is also engraved with a guilloche pattern. This, like the caps and grip zones of all models, is coated with a high-quality layer of rhodium.
This craftsmanship produces writing implements that are unique works of art. No two pens or pencils are identical; each is individually hand finished.