Projectile points, made of flint and quartz, frequently found near mammoth and bison bones. The fourth point from the left is grooved at the base to make it easier to fasten it to the shaft. Longest point: 3.88 inches. Paleo-Indian Period, Clovis Culture, approximately 9500 B.C., ASM.
ASM = Arizona State Museum, University of Arizona, Tucson (Arizona)