Rohrer & Klingner inks feature brilliant natural colorants, specially treated water, and as few artificial additives as possible. Available in 50ml bottle with few choices of colors. Suitable for dip pens and fountain pens.
This is the 2019 limited edition ink. Although it say maroon, but it looks more like chestnut brown.
Here we have made the swatch for each color and you will be able to see the actual shades.