Osprey Nib Units - Standard Size 6, GP EF, F, and B Black insert
This nib unit collection allows you to choose between EEF, EF, F, and Broad Gold Plated (GP) size 6 Osprey Pens nib units with Black insert.
This Nib Unit works with pre-filled ink cartridges or with bottled ink using a converter (any generic international or Osprey threaded converter will work with this threaded insert). Keeping in line with the interchangeable philosophy, this threaded nib insert fits nicely into a Milano, Scholar or Madison. This threaded nib unit can be fitted to the following Osprey Fountain Pens: