Figure 35— Discoidal scrapers. Actual size.
Figure 36— Uncompahgre scrapers. Actual size.
Figure 37— A-E, serrated scrapers. F, spoke-shave.
Actual size.
Figure 38— A-D, drill types one-four. E-I, gravers.
Actual size.
Perforators ([Figs. 38], [39])
Twenty-one specimens are considered to have been used as awls or perforators. Though individual form varies greatly, most are made on plano-convex or concavo-convex flakes. Flaking is concentrated on the short point, though it sometimes extends further on one or both faces. Occasionally, one or more of the edges have seen secondary use as a scraper. Of the total, nine specimens are of flinty material, one of obsidian. The remainder are quartzite (8) or quartz (3). They range in length from ¾ to 2½ inches, and from ½ to 1½ inches in width.