A Celadon Jade Rectangular Lock-Form Plaque, Qing Dynasty清 青玉雕鎖型「狀元及第」珮Carved on one side with a four characters reading 'zhuangyuan jidi' (highest rank scholar); the reverse with another four stylized Chinese characters reading 'yongbao pingan' (eternal peace), all surrounded by two archaistic confronting dragons, length 3.1 in — 8 cmEstimate: $400—600