Gunpowder is part of the Keystone Formula fountain pen ink line, our traditional dye-colorant ink. The 100mL volume will provide approximately 125 standard converter refills assuming a 0.8mL draw. Enjoy Gunpowder as a standalone fountain pen ink, or blend it with other Birmingham Pen Co. fountain pen inks to craft your personalized shade.
Karkos Black
Plain Black Ink. No sheen, shade, or anything. Just black.
Black Cartridges Pilot Namiki and Jinha
Fits Pilot pens, like the Kakuno, Prera, and the 78g. Fits Jinhao pens w/ 2.6mm bore. Not the ones with the LAMY nibs, but the others.