This little antique clamp is made of ivory and deeply hand carved with Canton style floral and landscape designs. The original rose silk pincushion sits on the top. The silk is deteriorating but the cushion below is intact & sturdy. This style of clamp was made in China for English export in the early 19th century.
The condition is excellent with no chips, cracks or other damage and the screw holds securely. It measures about 3" tall with the screw half way in as shown. Similar clamps are shown on p. 84 of Nerylla Taunton's book "Antique Needlework Tools and Embroideries".