Robert Oster Plumb Nut Ink (50ml Bottle)
This 50ml plastic bottle of Robert Oster Signature Plumb Nut fountain pen ink is a deep, muted purple ink. The 50ml bottles are manufactured in Australia of food grade BPA-free PET, completely recyclable and manufactured in a carbon neutral process, something that founder Robert Oster is extremely proud of.
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Volume - 50ml Bottle Material - Plastic Color Group - Purple