白玉福海壽山圭璧配座 The rectangular body with pointed top and flat base, carved in shallow relief with sacred mountain above turbulent ocean, the reverse inscribed with imperial poem with seal marks, all supported on hardwood stand. 此圭以上等和田白玉為材，整體呈圭形，長方形上部凸起，棱角分明。正面淺浮雕海水江崖紋，古樸端莊，圭頂尖端處刻有三星，有三星高照之意，整圖亦有一鬥山河之意。有背面刻有乾隆禦題詩，刀法犀利，雕工精湛，製作考究，匠心獨運，具濃鬱的宮告廷之風。玉質溫潤油亮，用料上乘，尺寸碩大，造型別致。