Fine line painted pottery

This is a "raw" photo showing twelve different rim sherds from along the Iruyañez River. This is a style of pottery that seems to be associated with a site called San Juan, which we dated through radiocarbon dates to the mid-first millennium AD. The distinctive feature is the broad flared rim with the repeating fine lines painted on it. There are a few locations along the Iruyañez (including near the San Juan site) where large scatters of these kinds of sherds are present on the surface. Sometimes we can even see faint incised lines cutting across the parallel zigs and zags of the painted lines, almost as though to guide the painting process.  The artifacts are of course all in the Museo Yacuma.