Otto Hutt fountain pens are high-quality writing instruments. This is also true of the Otto Hutt design05, but it stands out.Not only because the pen here is in bright yellow. This fountain pen is striking. And I’ve been meaning to show it for a while now. Because it is special. It is the Otto Hutt design05 and probably the most striking fountain pen in the Otto Hutt range.A company that is already represented here on…