Knife looks great!!
Wonderful, clean work.
Brad, the notch in the blade is called a "Spanish Notch" and the purpose was to catch your opponents blade in a knife fight and either break his blade or wrestle it from his grip. On some fighters, such as the Loveless SubHilt there are raised lugs at the ends of the guards, these are to keep your foes blade from riding up your blade and glancing off the guard and across your knuckles. This Spanish notch is absolutely historically correct for this type of knife and I commend Kiethlen for using and sharing it.
....of course the best weapon to take to a knife fight is still a 1911. IMHO.
Steven