This tea's pinyin is Tong xing hao hou qi yuan cha 1970's which tells that it is a special process aged pu-erh compressed tea from 1970's. It was made in the Yi wu tong xing cha zhang. Yi wu is the town of production. Since the factory was established in 1733 it was called the Tong shun xiang hao. The family is said to have gone to Thailand at the time of the Cultural Revolution to continue to preserve the secret process of the old factory. The leaf is a grade 3 large leaf variety which is very high for beeng cha's. It is considered brown and raw (not cooked or black). It can be infused many times and has a sublime smooth taste that leaves a pleasant woody aftertaste. Only time and expert production can produce a tea of this class. In addition, the rice paper wrapping is hand embossed in the chop fashion. Note that the lettering is very faded on all these cakes, but the tea is clean. Each cake weighs about 380 g. This tea is truly intoxicating and very special.