Pen and Umbrella Knives

[Sesoku]

Who makes the best pen and umbrella knives? By pen I mean the kind that is a functional pen that you pull apart to reveal the blade. I have seen some in the local knife shop, I just wondered if there is a high quality version. As for the umbrella knife, I seem to remember seeing some in a catalog somewhere.
Thanks

 

[Esav Benyamin]

I've never seen a pen knife I would recommend. They all look cheap.

Museum Replicas sells a sword umbrella for $49.95 -- more like a dagger/folding umbrella! Go to the link, then go to the bottom of the page and Search for "umbrella".