Noodlers Ink Dark Matter ~ partially forgery resistant; water resistant; impervious to lasers, alcohols and solvents; available in a 3 oz glass bottle.
A quick comparison of Noodler's Black Inks – – Fountain Pen, Ink, and Stationery Reviews
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Noodler's Dark Matter – Ink Review – – Fountain Pen, Ink, and Stationery Reviews
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3oz (90ml) bottle of Noodler's Red Black fountain pen ink. Noodler's inks are handcrafted, so there may be slight color variations from batch to
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Noodler's Ink Refills Dark Matter Bottled Ink : Office Products