Wormser Terra-Sigillata Studio, West Germany, Art Pottery Wine Jug Terracotta Roman stylised Wine Jug is finely finished in velvety gloss glazing technique developed for the Studio and patented by Jean Kling Marked: a€?256/3a€ and a€?Wormser Terra Sigillata.a€ Wormser Terra-Sigillata Studio 1949 (closed in 1980s).