Brown speckled gray Bartmann jug, also called Bellarmine jug, under beard mask medallion with star motif, Bartmann jug jug crockery holder soil find ceramic stoneware clay engobe glaze salt glaze, hand turned stamped glazed glazed baked stoneware jug gray shard brown brindled salt glaze pointed tail archeology city triangle rotterdam Laurenskerk import pottery drink packaging transport archaeological find in the soil Rotterdam: environment Laurenskerk 1957.