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Aqueduct is part of the Keystone Formula fountain pen ink line, our traditional dye-colorant ink. The generous 100mL volume will provide approximately 125 standard converter refills assuming a 0.8mL draw. Enjoy Aqueduct as a standalone fountain pen ink, or blend it with other Birmingham Pen Co. fountain pen inks to craft your personalized shade.
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We currently ship within the US, with more countries coming soon.
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🇺🇸 Ship from USA · On Agora since 2025
$17.00