Noodler's X-Feather is designed to resist feathering especially on cheap, recycled papers. It is billed as archival and 100% bulletproof. 3 oz bottle.
Fountain Pen Hospital Accessories
Noodler's Bottled Ink for Fountain Pens in X-Feather Blue - 3oz
A love for fountain pens, inks, and handwriting - Peninkcillin
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Noodler's X-Feather Black Fountain Pen Ink - Goldspot Pens
Noodler's Liberty's Elysium
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19819 X-Feather Black 4.5 oz — Noodler's Ink
Noodler's X Feather
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Noodler's X-Feather Black Fountain Pen Ink - Goldspot Pens
Noodler's Ink Anti-Feather Blue 3oz/90ml