keystone - conch shell

Birmingham Keystone Conch Shell is a warm, earthy brown ink with low shading and no sheen, offering a medium flow suitable for reliable everyday writing. It has low water resistance and performs best on fountain pen-friendly papers, making it ideal for journaling and sketching where subtle tonal variation is appreciated. This ink suits fountain pen enthusiasts who prefer classic, water-soluble dyes with a natural, understated appearance.