I have been collecting SOG knives for only a year or two & currently own two SOG original Tomcats and I already know the differences between the SM. CA. and the EDM. WA. versions but I now have purchased one that says nothing under SOG SPECIALTY KNIVES and have only come across a couple pictures of these Tomcats. There are a few differences between this one and my SM. CA. Tomcat. The blades are slightly different, the blade on this one is close to a 1/4" longer, the curve at the very bottom beginning of the knife has much less of a curve, and the top has more of a bow down to the tip than the SM CA knife also this one has seki japan etched into the blade a lot smaller than the SM CA. I was hoping there might be someone out there who could let me know a little more about this knife like when it was made, is it worth more or less than the SM CA or any information about it besides what I already know, thank you.