S.T. Dupont Custom Fountain Pen Converter For Vintage Pens
This piston refill for fountain pens transforms your cartridge pen into a pump action fountain pen that refills using bottled ink. Simply dip the pen into the ink bottle and turn the thumb wheel to make the piston draw ink into the cartridge. Sold online and in person at the Art Brown International Pen Shop.
This is an S.T. Dupont converter. The opening will be customized to fit the following pens:
Brand: S.T. Dupont