lol!! yes it does!..the angled notch, I have many versions...but then the other notch looks side notched, and I have very few of those...one trait of the Grands is the base will have flaking that is side by side across the base...seems to usually be about 4 "grooves" running the WIDTH of the base, I don't think I see that in your pics..a member named Neanderthal can tell you what you have...he's also the curator of the artifact museum at Bentonville