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A triangular shaped vesicular basalt abrader that is ground. There is an adhering matrix on one side. K. Peterson 2/10/99
1 cobble-sized vesicular basalt abrader
Chipped on ends
Stone artifact (?). Locality: Quartermaster Harbor, Vashon Island. 1 cm thick. No site number recorded by Roberts. *Information is from the original accession ledger.
Very light, broken (glued) at one end.
Red; square; only part remains.
Gray pumice abrader that is grooved on one side and the opposite side is incised. M. Christopher 10/30/1998.
Scoria stone tool, possibly sharpener.* Vesicular basalt, roughly rectangular in plan view, with groove along entire circumference of edge. Faces recessed with two lentghwise grooves in bottom of recess (6/95). *Information is from the original accession ledger.
Grind marks on both faces. Level II
Single groove, may be battered on both ends.