Charting patterns in a geometric tunic from the Middle Horizon. (b) Symmetry chart showing the four orientations of the two icons. Profile faces are shown with black arrows.
Isbell, William H.; Uribe, Mauricio I.; Tiballi, Anne; Edward P. Zegarra, 2018, "Visual database", https://doi.org/10.25346/S6/1B33FN.