Stumbled onto some pics tonight of Siberian style axes and then the knives caught my attention. They are very similar in style to Finish knives but have forged depressions or fullers, at least it seemed to be a common trait. I have not typically been a fan of grooves or fullers, or intentionally leaving hammer marks in my work, but this has a look that is growing on me. After a little further research apparently the fuller is on 1 side only and traditionally this side of the blade had a flat grind or chisel and the other side convex. http://av-salnikov.livejournal.com/3501.html?utm_source=twsharing&utm_medium=social https://en.wikipedia.org/wiki/Yakutian_knife The grind is quite interesting as are the theories. The design results in a knife that has to be made right or left handed. Anyone use or familiar with this style of knife? Still trying to wrap my head around it.