Diagnostic Artifacts

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18BA71 UMBC Brewerton Corner Notched concave base corner-notched excurvate blade expanding stem Late Archaic Period rhyolite

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18BA71 UMBC Brewerton Side Notched expanding stem Late Archaic Period quartzite side-notched straight base straight blade

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18BA71 UMBC Brewerton Side Notched concave base excurvate blade expanding stem Late Archaic Period rhyolite side-notched

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18BA71 UMBC convex base Early Archaic Period Kirk Stemmed rhyolite stemmed straight blade straight stem

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18BA71 UMBC Early Archaic Period Kirk Stemmed rhyolite stemmed straight base straight blade straight stem

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18BA71 UMBC bifurcate bifurcate base Early Archaic Period excurvate blade expanding stem MacCorkle rhyolite

An online guide to artifacts from the Middle Atlantic by the Maryland Archaeological Conservation Laboratory