each of bulbous form with flared neck on circular foot, in deep red glaze, 10 x 6-1/2 in. diameter Note: Sang de boeuf is a deep red color of ceramic glaze, first appearing in Chinese porcelain at the start of the 18th century. The name is French, meaning "ox blood" (or cow blood), and the glaze and the color are also called ox-blood or oxblood in English, in this and other contexts. Sang de boeuf was produced with a variety of shades of color and as well as mottling, streaked effects in the glaze, which often fades to white at the top of pieces, and conversely thickens around the shoulders of vases and at the foot, which is often not fully covered by the glaze. There is often crackle, and a greenish tinge at the edges of the glazed area, where the glaze is thin. All of these were considered desirable effects. Generally the glaze is only applied to the outside of closed shapes, the inside and rim left with a clear glaze. (wiki) Provenance: Private Collection, Colorado