明 樹. pu ru 1896 1963 rock and old trees ink on paper hanging scroll 58 30cm 溥儒 1896 1963 奇石老樹圖水墨紙本立軸款識 石奇橫露骨 樹老倒懸筋 心畬 鈐印 舊王孫 chinese painting art painting