I recently came across a Tombow pen that I'm looking for more information on. It appears to be brand new in box, or if not new then very lightly used. After a few internet searches it looks like I may have the discontinued Zoom Mano model, but there is very little information on this doing simple google searches. I'm considering selling this pen but I'm unable to determine a proper value. Any information you can provide would be much appreciated. Thanks, Matt