A Chinese white jade carved "Zigang" plaque dating from the 18th century or earlier. The plaque is carved on 1 side with 16 characters, and on the other with a bird and a flowering branch. Dimensions are: 2 1/4 inches tall X 1 1/4 inches wide, 5.7 cm tall X 3.2 cm wide. All measurements are approximate. High resolution images can be found here Condition: It is in good condition. Provenance: From Mr. Chow in Honolulu, Hawaii. A family heirloom.