De Atramentis Wilhelm Busch, Petrol 8mm Line Diamine Grape is a dark

Diamine Grape is a dark purple fountain pen ink with medium shading and medium gold sheen

with a bit of retro print pop

Brand Noodler's Ink Name Eel Blue

Jacques  Herbin ink is made in France

Pilot Iroshizuku Yama-Guri

De Atramentis Wilhelm Busch, Petrol 8mm Line Diamine Grape is a darkGreen fountain pen ink from DeAtramentis, handmade in Germany. This ink is a duplicate of DeAtramentis Standard Petrol. Heinrich Christian Wilhelm Busch was a German humorist, poet, illustrator and painter. He published comic illustrated cautionary tales from 1859, achieving his most notable works in the 1870s. This ink is made by hand in small batches, therefore there could be some color variation between bottles of ink.