Notched Mauds:
Maud are a triangular Mississippian arrow point that occurs throughout the SW portion of the Ozarks, well over into central OK and KS. Generally they get mistaken for Fresno, which doesn't occur here either. Notched Maud are almost always misidentified as Washita points, you'll find them up in KS as well.
Photos by Kansas and Neanderthal
Information provided by Neanderthal