Still new to this... 90's ZhongCha Yellow Stamp 7571, if I read this
correctly the tea came from the Kunming factory (ie factory code '1').

However another source says that the Zhongcha brand is owned by Tea Import &
Export Co since 2004. But was registered to Menghai from 1951 to 2004

Can someone please clarify?

--
Cheers
Mal
Oz
http://maloz.bigblog.com.au/index.do