W number 4019: agate BaoJinYe pen lickSize: 20.5 cm wide and 13.3 cm high 3 cm long weighs 195.9 gIs material with agate, agate quality of a material is solid, colour and lustre is pure natural, warm, soft it assumes the leaf shape, leaf stems distribution norm, mouth along with gold plated process, the whole modelling elegant chic, carving knife method skillfully, line is fluent, clever and reasonable, is a rare and valuable.