tri-folders? who makes them anymore?

[Drew Riley]

I've recently discovered and have been very intrigued by the concept of a tri-fold (jacob's ladder/triple action) knife.
I've researched the Cold Steel triple action folder a bit, and I'm aware of (though I've yet to find any) Fred Perrin's design.
I also see where Case XX used to make a similiar model (now out of production).

My question is, does anybody else make these kinds of knives anymore? I know that they were never a very widespread concept, but I'd really like to get my hands on a decent one.

 

[bob bowie]

Right now the Cold Steel Triple Action folder is the easiest to find half way decent verson of this style. The only other options are custom, www.bladeart.com , might be able to find you a custom Perrin.