I tried Platinum's new super black ink : r/fountainpens

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Platinum Chou Kuro Black Ink - 60 ml Bottle

Platinum Black Ink - 60 ml Bottle

Platinum Chou Kuro Black - 60ml Bottled Fountain Pen Ink - The

Platinum Classic Ink - Chou Kuro Black - The blackest-black ink in Platinum Pen's history of over 100 years. With the growing interest in fountain pen inks in recent years, the variation of ink colors is also increasing. In response to the customersʼ request for a blacker ink, Platinum Pen has developed a new ink that is the best black ink ever in its long history of 104 years since its founding.

Platinum Chou Kuro Black Ink 60ml

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Wordsworth & Black Fountain Pen Set Comes With 6 Ink Cartridges