Rohrer and Klingner Dokumentus ink is designed for fountain pens (best with wide nibs) and made specifically for signing official documents which require long term permanence.
Dokumentus is made with small diameter micronized pigment and is waterproof and lightfast (unlike most fountain pen inks which are made with dyes and therefore not lightfast over time). Learn More
Fountain pen inks are typically made with dyes, meaning that they are not lightfast over time. This ink is made with pigment and is both waterproof and lightfast. Designed for fountain pen and for signing official documents which require long term permanence. Made of small diameter micronized pigment. Learn More