Opo, Templar Steel. The last picture is the blade as delivered years ago. The blade was made for a rope access expert. He has used it in the construction business for eight years. The photographs are the knife after eight years of industry tasking. After eight years of use and reshapening the knife was delivered at 42mm and the blade is now 37mm. The blade needed to be reset to bring back geometry which I did. It is interesting for me the see what tasking does to the blade. But more interesting is that every time a blade gets back to me after years of use the original blade edge is different from how I delivered it to them. Still all the customers are pleased with their blades' performance. I know this blade has done the following. It punched through 2mm steel plate for accessing, you can see it on the rear of the ricasso line: the huge scratches (the steel sticks to the Tian coating). From the darkness of that steel coloring I can see it has been done repeatedly. The blade levered in a 400kg fire door. They had problems with fitting in a fire door during a construction job in French Guiana so the fire door wouldn't fit. The Opo was used to slide under the door and then lever it into the final position by stepping on the handle. It never ceases to amaze me what blades can do.