A black polished rim sherd of a new type of bowl, distinctive for its rim form. Flat on top, but widens inward off the body, which is why it's two part and not rectangular. Similar to WSAC3.03.C.07, though a bit thicker in both body and rim. Also, there is a slight lip on the exterior of the rim, which does not exist for WSAC3.03.C.07.
From Interior to Exterior