To answer your original question, the thing seen in the last photo is a locking device. You push that forward and it slides between the frame and the lock scale to prevent the knife from closing during use. I've held one of these in a local Haji shop here in Afghanistan, and they are surprisingly smoothe to open and close. It really is a frame lock, but the lock tension is not nearly as strong as a true Sebenza lock tension, hence the need for that extra safety measure. The Hajis want around $15 for them, but with haggling, you can get them down to around $5, which makes it not that bad a deal for someone who would never pay full price for an authentic Sebenza. And let's face it, these cheap knock-offs aren't hurting CRK's bottom line, because the folks that are purchasing them are not the ones who are going to lay down $400+ for a pocket knife in the first place, and the folks that are truly looking for a Sebenza are going to know that they're not gonna get a true Sebenza for anywhere close to $100 on Ebay, much less $5 at a Haji shop. Now, I'm not saying it's right, or that these cheap knockoffs are no big deal. I'm just saying at the end of the day, they're not really hurting CRK because they're targeted to a whole different market demographic.