The Retro 51 Standard Fountain Pen Converter allows your cartridge-refill fountain pen to accept bottle ink refills. Discover the joy and fluidity of bottled ink!
Our Retro 51 Fountain Pen Converter allows you to easily experience hundreds of fountain pen ink colours that only come in bottles. The plastic ball agitator sits in the chamber.
This converter turns a cartridge pen into a plunger fountain pen. Our converter will fit into any Retro 51 which uses the JoWo nib.
Compatible with other International Standard Universal Converters but we would prefer you use this one for Retro 51 pens.