秦代玉琮, H. 29cm, D.7cm, 3500g。 本器白玉雕琢, 属于中大型玉琮. 玉琮的四个平面系以阳线的如意云纹组合为图饰.  全器布满 ┐∫ Z形狀直式及横式如意云纹浅浮雕, 不但充满变化, 而且极富神秘感 . 本玉琮扩散晕沁色及包浆古玉跡象明显。Spring Autumn Jade Cong, H. 29cm, D.7cm, 3500 grams. Carved with white jade, the object is a vertical cong shape form without horizontal section divisions unlike the other typical congs from Liangzhu Culture to the Warring States periods. On each plane, square-style low-relief auspicious cloud motifs are decorated. In addition, many ┐∫ Z shape symbols are scattered around to increase the effects of the mystery of the meaning to be represented. Antiquity evidences are diffusive markings and calcification.