High quality glass window decoration framed with traditional stained glass lead and hung with trace chain gift boxed designed hand painted and made in britain 39grisaille39 is a style of medieval stained glass using mainly clear or white glass the name means 39grey39 but it is often very beautiful with occasional jewels of colour this grisaille design is based on a decorative motif in the ancient glass of canterbury cathedral and signifies the christian crosssafe usag