Comparison of fineware surface treatment by style. The upper sherds are (c) Tupuraya style showing surfaces that are smoothed but not burnished. All vessels from Piñami.
Isbell, William H.; Uribe, Mauricio I.; Tiballi, Anne; Edward P. Zegarra, 2018, "Visual database", https://doi.org/10.25346/S6/1B33FN.