東漢青玉宜子孫鏤雕玉璧, 長34公分, 圓直徑24.5公分, 厚0.7公分.本器青玉雙面對稱雕琢, 形制為出廓鏤空玉璧。玉璧外緣頂端施宜字 , 左右兩側施回首鈕鳳鳥紋, 鳳鳥頭上頂住一如意紋 ; 玉璧主體中央施子孫二字, 四周飾以如意紋。本器設計之重點放在文字部分, 文字之字形工整優美, 筆劃中央飾以游絲毛雕陰線; 全器多處紋飾表面之上飾網紋游絲毛雕。本器線條細膩婉轉華麗, 堪稱東漢鏤雕宜子孫玉璧瑰寶。 本器增生晶體及擴散暈沁色古玉跡象明顯, 其他古玉跡象有鈣化及冰裂紋等。(台灣頤和園博物館藏品, 陳明杰鑑賞並撰文)

<易經>子曰. 夫易何為者也, 夫易開物成務, 冒天下之道, 如斯而已者也, 是故聖人以通天下之志, 以定天下之業, 以斷天下之疑. <The Text of Yi King>The Master said: What is it that the Yi does? The Yi opens up (the knowledge of the issues of ) things, accomplishes the undertakings of men, and embraces under it( the way of) all things under the sky. This and nothing more is what the Yi does. Thereby the sages, through (divination by) it, would give their proper course to the aims of all under the sky, would give stability to their undertakings, and determine their doubts.