I had one few years back... gave to gf
anyhoo it was a folder 1/2 serr aprox 3 inch spearpoint type blade with jimmping on the back. it locked via the spine, the scales came up and around and went into a notch in the back of the blade. to unlock you grab the spine lock with thumb and index, pull up and then push down with pointer finger. would like to find it again. i believe it was an edgeco tactial.
