J.Herbin  Ink bottle, La Perle des Encres series Turquoise ink (Periwinkle) (10 ml)

Test new colors. Very handy when traveling.

For fountain pens and glass pens Water-based, 10ml

Go see in the ' Specifications ' section below the PDF file to view the colors

Bleu pervenche (Blue periwinkle): named after the flower of that very same name.