From what I can remember I believe that all of the TOAD models were AUS-8. They were only made from 1999-2002 from what I remember. I never owned a TOAD and its one of the very few out of that "Pre 2005" era that I didn't own at one time. The Spyderedged TOAD model you have pictured I hear is really tough to find. I almost forgot that the Merlin was mainly made with ATS-55. A good friend of mine recently gave me a VG-10 Merlin and I couldn't believe it because I heard that there were less than 500 of those ever made. I also have that LUM Tanto folder you have displayed on the bottom and mine is a exact copy of that one of yours. I even EDC mine every so often. They also tell me if you can find one of those Matriarch models with a Gray handle that was made with ATS-55 that it's really getting rare.