A type of Mexican folk pottery first collected in 1920 at Cuernavaca is demonstrated to be of Iberian derivation and to date back as early as the 17th century. It has been found at Ft. Jesus in Mombasa, Kenya, and at the kiln site in the Old City of Panama. The pottery is decorated with inlays of small tesserae of feldspar and occasionally other minerals. Incision, stamping, low relief, and red paint are often associated decorative features.