This monochrome strainer-spout jug helped author Ephraim Stern distinguish between the pottery of the southern Philistines and the northern Sea Peoples. This jug is from the northern Sea Peoples’ site of Dor. Although it is decorated with motifs similar to Philistine bichrome pottery, this jug is painted in only one color—red. Monochrome pottery, Stern discovered, differentiates northern from southern Sea Peoples’ vessels.