Like IIA, except that the worked edges display a marked degree of secondary flaking or resharpening, to the point where sections of the steepened sides are notably undercut.
Type III
Distinct from other forms in that they are shaped from angular rocks on which two separate working faces have been developed. In other respects the specimens in this category fall essentially into the IIA class.
Table 2
Frequency of Scraper Planes by Depth
| Depth (in in.) | |||||||||||
| Type | 0-6 | 6-12 | 12-18 | 18-24 | 24-30 | 30-36 | 36-42 | 42-48 | 48-54 | 54-60 | Total |
| IA | 22 | 21 | 16 | 9 | 6 | 4 | 1 | 1 | ... | ... | 80 |
| IB | 11 | 6 | 5 | 8 | 3 | 2 | 1 | ... | ... | ... | 36 |
| IC | 34 | 52 | 28 | 17 | 14 | 7 | 2 | 1 | ... | ... | 155 |
| IIA | 356 | 472 | 385 | 187 | 88 | 43 | 23 | 12 | 2 | 2 | 1,570 |
| IIB | 12 | 7 | 10 | 4 | 1 | ... | ... | 2 | ... | ... | 36 |
| III | 29 | 43 | 21 | 17 | 7 | 9 | 3 | 1 | 1 | ... | 131 |
| Total by level | 464 | 601 | 465 | 242 | 119 | 65 | 30 | 17 | 3 | 2 | 2,008 |
Scrapers.
Side scrapers (fig. 3, d-e).—Ovoid to angular, with convex working edges. Frequently with scalloped working edges.
Straight-edge scrapers or knives (fig. 3, f).—Irregular forms with a single straight, monofacial retouched margin along one side.
Ovoid or discoidal scrapers (fig. 3, a).—Made from large flat flakes, often showing a percussion bulb on one surface, and worked to a near-symmetrical form. Chipping may extend over the whole of one or both faces.