TWSBI Diamond 580AL Fountain Pen in Iceberg Blue Color__Silver__rotring-600-series-silver-ballpoint-pen Herbin anniversary ink is called

Herbin anniversary ink is called "Caroube de Chypre" (Cyprus Carob) because of its deep brown color

Smithsonian logo on top ring

International sized ink cartridges measure to 1

Material: Acrylic Mother-of-Pearl Resin and deep colors bejeweled with sparkly effect

Reach all the way down in the corner of a near empty ink bottle with this handy accessory

TWSBI Diamond 580AL Fountain Pen in Iceberg Blue Color__Silver__rotring-600-series-silver-ballpoint-pen Herbin anniversary ink is calledThe TWSBI (commonly pronounced "twiz bee") Diamond 580 is the 21st Century interpretation of a classic writing instrument. While most of our modern communication devices lack transparency and customization, the TWSBI Diamond 580 excels with a transparent resin construction that can be disassembled using the included wrench. The Diamond 580 represents the fusion of a traditional fountain pen with a modern industrial design. The result is an eye