Kaweco piston converter for Kaweco Sport fountain pens. A miniature piston converter allowing the use of bottled inks with Kaweco's compact fountain pens (but not the Liliput) that can normally only use short international standard cartridges.
Kaweco piston converter for Kaweco Sport fountain pens. A miniature piston converter allowing the use of bottled inks with Kaweco's compact fountain pens (but not the Liliput) that can normally only use short international standard cartridges.