Kawanishi Glass glass pen. Sazanami Rare [Koya (Rainbow Night)] After testing it out, I would occasionally take it out of the wooden box to admire it. It has a dark and unusual color. I'm selling it to someone who is looking for one, as I no longer have the opportunity to use it. The included accessories are the wooden box, pen rest, pen tip cover, and instruction manual. Total length: 15.8cm I believe it is a medium-fine nib. Please comment if you have any questions.