10. Ijzergalnoten blue/black - Akkerman fountain pen ink

The Akkerman "baby long neck" bottles have a capacity of approximately 60 ml. The faceted ink bottle is characterized by the long neck that contains a glass marble.
Akkerman fountain pen ink is suitable for any type of fountain pen and available in 31 sparkling colors. The ink colors have been given names in the Hague

What makes this bottle so unique By tilting the closed ink bottle, the neck fills with ink. Upright again, the marble will fall back and prevent the ink from flowing back. This creates a reservoir with ink above the marble from which the fountain pen can easily be filled, even when the pot is almost empty..

 # 10 Iron gallnuts blue / black

Marbled galls used to provide ink, gallnuts were an important part of the ink that the elderly among us can still remember well, large bottles of ink used to fill the inkwells in the school desks. Since the Middle Ages, writing has been done in gallnut ink. The recipe also mentions: use a rusty nail, so there is a chance of iron corrosion in your paper..