This is a dead stock item. It's a discontinued custom fountain pen. It has a 14k gold nib of a similar size to the Kakuno, on a body similar to the Celemo. By pulling out the nib, you can modify fountain pens like the Kakuno, Lytive, Prera, and Cocoon with a 14k gold nib. A box is available for an additional 300 yen. In an era where 18k gold nib fountain pens easily exceed 20,000 yen, isn't this a good deal? Price is negotiable.