This pot was produced by Yixing Factory 1 during the 1977-1982 'Green Label' period. They were stored by a collector since then.
The teapots used purple clay (Zi Ni). It's a typical shui ping style from Yixing Factory 1 in that period.
The clay used by Factory 1 during this period was very good and these pots are nicely high fired which are well suited for brewing young and aged oolong, and all types of aged teas. Inside has a single hole filter, the wall is medium thickness, the lid is a little loose.
