Passage Blue fountain pen ink made by P.W. Akkerman pen store in The Hague.
Passage Blue is a brighter shade than #00. It falls in the aqua blue category and may remind you of the tropical skies and crystal blue waters from your favorite beach spot. Lovely color, but still tame enough for professional use. Passage Blue shades but does not sheen.
Originally made to celebrate their 100th anniversary, this ink comes in a vintage-style 60mL glass bottle with a narrow neck and a marble stopper that creates a well at the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.
"De Passage" is the Arcade, or covered shopping street, in The Hague where the P.W. Akkerman store is located.