歙硯 The Sheyan ink stone carved on the cover with a magpie bird perched on plum flower trees, the top with artist colophon and signature Zhu Weibi, reverse incised with eight character mark, the ink stone is of brownish-black color tone with misty exterior and natural stone veins. Height: 1 1/2 in (3.8 cm) Length: 9 in (22.9 cm) Width: 5 1/4 in (13.3 cm)