There are four types of knives or bifacially worked cutting implements.
All are relatively thin, less than ¼ inch thick, and flaked on both
sides, often with broad shallow chipping. The first type consists of
small ovoid bifaces. The largest of these measures 2¼ × 1 inch, the
smallest ⅞ × ⅝ inches with most being about 1 × ¾ inches. The majority
resemble Fig. 28, being slightly asymmetrical although some are more
triangular. They were probably used as small knives, possibly hafted.
Since the point is usually off-center, and they are generally thick
in relation to their size, they do not appear to be projectile point
blanks, though a few of the finest may have been. They are usually of a
crypto-crystalline quartz. One is of obsidian. There is a total of 41
pieces.
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