The other large group of Tz´ŭ Chou wares, that with engraved designs (_hua, hua_), is perhaps the most interesting of the three. One class, the white ware with carved ornament, if it existed, has been merged, like the plain white, in the Ting wares. The vase (Plate 33, Fig. 2) with brown glaze and panelled design exactly corresponding to those of the typical painted wares, but engraved with a pointed instrument through the brown glaze, forms a link between the two main groups.[245] But the more characteristic Tz´ŭ Chou engraved ornament is executed by what is usually known as the _graffiato_ process, the lines of the design being cut through a layer of slip which contrasts in colour with the underlying material. This is illustrated by those vases on which the ornament is etched through a covering of white slip disclosing the greyish body beneath, or, better still, by specimens like Plate 34, Fig. 3, in which the ground of the pattern is freely cut away, exposing considerable areas of the body.[246] The greyish body colour combines with the transparent but creamy glaze to produce a delicate mouse-coloured surface, from which the pattern stands out in ivory white. In other cases a thick lustrous brown black glaze has been boldly carved, leaving the design to contrast with an unglazed grey biscuit (Plate 34, Fig. 3). By varying and combining these different methods, and by changing and counter-changing the slips, a great diversity of effects was readily obtained. It has been frequently remarked that some of the engraved specimens with bands of large foliage scrolls have an astonishing resemblance to Italian _graffiato_ ware of the sixteenth century; and this resemblance is particularly striking when, as sometimes happens, a green glaze is used instead of the ordinary creamy covering. No doubt these carved wares, like their fellows with painted ornament, were made for many centuries, but there is good reason to think that they date back to early times, for fragments both of the _graffiato_ with white slip and mouse-coloured ground, and of the dark brown glaze cut away, were found in Sir Aurel Stein's excavations in Turfan on sites which can hardly have been open after the twelfth century.[247] An important example recently acquired by the British Museum actually bears a Sung date. It is a pillow with carved panels on the sides containing each a large flower and formal foliage; and on the top is a panel with the four characters _Chia kuo yung an_ ("everlasting peace in the family and state") etched in a ground powdered with small circles. This panel is flanked by two incised inscriptions stating that the pillow was made by the Chao family in the fourth year of Hsi Ning (i.e. 1071 A.D.). I have seen one other dated specimen of _graffiato_ Tz´ŭ Chou ware with beautifully carved floral designs and an inscription of the year 1063. Another Tz´ŭ Chou type is seen in a pillow in the Eumorfopoulos Collection