I am looking for a particular type of etching knife (a long shot at best). I used to own one and really liked it - unfortunately it was lost in a move. I've tried some other brands (adams, etc), but they just have not worked for me.

I don't know the brand off hand but I'll do my best to describe it:

It had a relatively fat and long machined aluminum handle and the blade had a slim triangular cross-section (the broad portion of the blade was the working end of the knife while the thin apex was the unused top of the knife. Well...that was about as clear as mud.

I'll try to see if there is a photo of one in one of my books I have laying around to add to the post in order to clear things up a bit.

If you have one let me know