The Hongsi ink stone carved on the surface with pine tree on a cliff edge, leaning outwards, the stone is of copper-red tone with silk-like thin patterns, reverse incised with colophon and signature Shangguan Yi.|||Length: 7 7/8 in (20.0 cm) Width: 6 1/4 in (15.9 cm)|紅絲硯|隨型設計精妙，雕琢手法嫺熟，雕刻松樹與整體相得益彰，底部文字刻款。以山東紅絲石入硯，石色絢麗華美，石質細密，包漿厚重，為難得紅絲石硯。