清 “ 大生”款留青攜琴仿友筆筒 Of cylindrical form, the exterior skillfully carved in 'liuqing' technique to depict mountains and riverscape set with pavillion, willow trees, wutong trees,etc., inscribed with four character 'shan shui qing yin' and signed 'liu sheng'. 筆筒圓筒式，採用留青技法，匠心獨運，技法高超，雕琢攜琴訪友圖，遠山近景，高士手持古琴，行於松柏山林之間，意境高遠，如此景緻於方寸間表現的淋漓盡致，真乃佳品。