The use of fritware in Persia from the twelfth century onwards equipped craftsmen with the means to create finer ceramic wares without the need for an opaque white glaze (Pancaroğlu 2007, p.90). The cobalt blue trails form a striking, almost luminous, detail under the transparent glaze on this ewer, establishing a cohesive design across its body. Yet it is a notably more minimalist design when compared to later wares. According to Pancaroğlu, similar dashes found on ceramics “may have been intended as an apotropaic ‘imperfection’ to protect the alluring, yet delicate, vessel from the harms of the “evil eye”” (Pancaroğlu 2007, pp.90-91, no.48). A vase with a similar paired stripe design is currently in the Arthur M. Sackler Gallery, Washington D.C. (inv.no.S1997.116).