Roman glassmakers normally polished their cut decoration. On some occasions, however, they left these areas rough to create a contrast between the granular surface of the decoration and the smooth surface of the background. This is known as abrasion. The Populonia Bottle is an outstanding example of late Roman abraded decoration. It is one of a group of nine similarly shaped vessels decorated with waterfront scenes and inscriptions. The scenes on some of these vessels depict a lake, a palace, an oyster bed, a jetty, and columns. The inscriptions identify the setting as Baiae, a Roman harbor town and resort on the Bay of Naples. The Populonia Bottle shows famous buildings in and around Baiae. Its name records the findspot, Populonia (near modern Piombino) in Tuscany, where it was discovered about 1812.