本器青玉雕琢, 形制為單節方琮, 四面相同, 琢如意紋及蠶紋淺浮雕, 左右上方及中央雕琢四個圓圈, 形成一抽象神面紋, 紋飾雕琢方式俱春秋風格, 方琮四角施展翅鳳鳥為托足, 鳳鳥立於鏤空圓盤之上. 鳳鳥鳳鳥羽毛以微雕為之, 婉約細膩, 本器為珍罕春秋玉琮, 古玉跡象為增生晶體, 鈣化及溶蝕孔. Carved with pale tone jade, the object is a one tier jade cong. Four sides of the cong have identical motifs of low relief auspicious cloud and silkworm. There are four round shapes on top and center locations to form an abstract god’s face. The carving style has Spring Autumn characteristics with great detail. There are phoenixes to support the four corners of the cong. The phoenixes are designed with open wings which are applied with mini carving style. This is a rare Spring Autumn single tier jade cong with antiquity evidence of additive crystal, calcification and dissolved pits.