This lovely Yuan Zhu teapot has the Yixing Teapot Factory seal but we have clearly identified it as a replica. The Yixing zi sha is of very nice quality and it is well processed but it isn't the same as the Xiao Hon Ni from the late years of the Yixing Teapot Factory which can be seen on this model. The whole Yixing Teapot showcases nice lines is well balanced. With this shape and Yixing zi sha, we suggest to use this Yixing Teapot with Chinese teas such as An Xi oolong tea or red tea. This lovely Yixing Teapot could also match pretty well aged raw puerh tea after a good period of seasonning.