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This frosted glass bottle contains 70ml of TWSBI Blue-Black fountain pen ink, and comes with a conical insert for easy pen filling. This color is a modern iron gall and highly water-resistant. The top of the TWSBI Diamond 50 Inkwell is also interchangeable with the top of these 70ml ink bottles, for another easy way to fill compatible pens.
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🇺🇸 Ship from USA · On Agora since 2024
$19.99