Royal Akkerman Blue fountain pen ink made by P.W. Akkerman pen store in The Hague.

Originally made to celebrate their 100th anniversary, this ink comes in a vintage-style 60mL glass bottle with a narrow neck and a marble stopper that creates a well at the top to aid in filling pens, allowing you to get every last drop of ink from the bottle.

Royal Blue is a lighter medium toned blue with some beautiful shading qualities and is perfect for use in everyday business settings.

Ackerman