A rim to body sherd of a new type of bowl/basin, a large and chunky version of the delicate WSAC3.03.C.07 (not sure if should be classed as same type, given considerable size differences). There are to non-joining sherds of this vessel, but only one is coded here (the larger one). The interior surfaces is eroded; was also likely polished. There is some black clouding on the rim of one of the sherds. The rim is what defines this type: Flat on top,a and inward pointed, or what I am calling two-part (with rounded edges).
From Interior to Exterior