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Goulet #6 Steel Flex Nib - Silver - The Goulet Pen Company
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Amazon.com : Noodlers FLEX NIB Fountain Pen, Piston Fill, Clear Demo : Office Products
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FPR #6 Two-tone EF Ultra Flex Nib – Fountain Pen Revolution
Everyday Writing with a Modern Flex Pen — The Gentleman Stationer
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Amazon.com : Noodler's Max Emerald Piston Fill Flex Nib FP : Fountain Pens : Office Products
