Leonardo Momento Zero Grande 2.0 Girasole. This Momento Zero Grande version 2.0 is equipped with an ink window so when uncapped, you can see the ink level available in the pen.
Made from resin is this a classical designed pen with thin clip, which goes back to Italian pens of the 1930s. The Momento Zero Grande pens have a piston filling mechanism with a max capacity of 1.5ml and a steel nib and abs feed.