A very fine pair of large opaline glass vases produced by Baccarat about 1840 - 50. They are particularly large being 52 centimetres tall. The floral decoration is by Jean-François Robert one of the finest decorators of the first part of the 19th century who worked originally for Sevres decorating porcelain. He discovered the way to decorate opaline glass and set up his own workshop where he worked for Baccarat and St Louis.