Chinese Toggle or Cong Pendant

Pale rounded plaque with a big center hole and two tiny pinpricks.

This toggle or cong pendant is from China. It is jade. Toggles began as counterweights on drawstring pouches, letting small bags of coins, medicines and similar items be looped securely over a sash in traditional dress that had no pockets. Flat, rounded-rectangle plate in milky greenish white, with one large circular opening in the middle and two small holes along the top edge. Edges are softly beveled and the surface is smooth and slightly cloudy. It is 2 inches long and 1.5 high.

Three holes, no explanation, and entirely sure of itself.