Object Record

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Collection Speer Collection
Catalog Number 1999.0001.0504
Object Name Point, Projectile
'Iipay Aa Name kwerraaw
Description A fragmented projectile point, in Southern California archaeology terms, also known as an arrowpoint. The type is a Dos Cabezas serrated point (#12 from True's typology) from the Late Prehistoric period, 1300-800 years ago. This bifacial tool is an elongated triangle in shape. It is serrated along two edges and has a broken tip, perhaps due to impact. The base is concave. The haft element has two distinct tangs (end points) produced by side-notches for hafting. The stone material is volcanic glass, possibly Obsidian Butte, although only a few quartz inclusions are observed; the point is not glassy in sheen. It is fine grained and may be fire-affected.

It is fairly thick. The ventral side has bilateral flake scars. The dorsal side has a fairly central ridge down the length with bilateral flake scars. There is some evidence of retouch, or reworking noted within some of the serrated flake scars.

Dimensions:
Length - 0.944", Width - 0.433", Depth/Thickness - 0.157", Weight - 0.035 oz


Provenance Borrego Valley: The Borrego Valley was inhabited and used variously by three Native American groups, the Kumeyaay-Diegueño, the Cahuilla and the Cupeño, until the late 1800s. Evidence of their occupation includes bedrock grinding stone areas, manos and metates, projectile points, pottery and other artifacts.
Date Late Prehistoric (1300-800 YA)
Material Obsidian
Technique Pressure Flaking
Culture Kumeyaay / Diegueño
Place of Origin CA, SDi
Caption Obsidian projectile point--longitudinal view, dorsal side, tip up.
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