The top one reminds me of the old Shrade sharp finger or little finger design I think they called it. Both are nice working man models, congrats !
I actually designed it from the Schrade Sharp Finger. It is a little different so I could grind it from 1" wide steel. The original Sharp finger needed wider steel. My Grandfather had one and he liked the shape, but he didn't think that it held a very good edge. This was my solution. I generally make them out of D2 (like this one is) or CPM S-30V, and they hold a very good edge that way.