States General Red fountain pen ink made by P.W. Akkerman pen store in The Hague.

This Bordeaux-leaning red ink has good shading.

Originally made to celebrate their 100th anniversary, this ink comes in a vintage-style bottle with a narrow neck with a marble stopper, to create a well at the top to aid in filling pens.

The States General (Staten-General) are the bicameral legislature of the Netherlands, consisting of the Senate (Eerste Kamer) and the House of Representatives (Tweede Kamer). The parliament meets at the Binnenhof in The Hague. (source: Wikipedia)

Ackerman