Diamine Cartridges Jet Black Ink, Pack of 18 – FPnibs
Diamine Jet Black | The Dizzy Pen
EFNIR: Diamine Jet Black - Ink Reviews - The Fountain Pen Network
I guess you get what you pay for....ink is Diamine Jet Black, top is Twsbi Eco in F, bottom is Platinum Preppy in 0.3 (f). Does your Preppy write like this?? :
Diamine Quartz Black
Ink Review #1136: Diamine Jet Black — Mountain of Ink
Diamine Jet Black - YouTube
Diamine Jet Black - Ink Reviews - The Fountain Pen Network