Called as "Zong Chang Tai" (Brown Changtai) in market since the brown color printed words on wrapper.
There are four versions of this tea published by Changtai tea factory. This one is the 1st one as listed.
1) One barcode, two stamps (barcode is on the back of wrapper. stamp is on the inner small paper file pressed into tea cake )
2) No barcode, no stamp
3) One barcode, one stamp
4) One barcode, two stamps
Guangzhou Natural Storage.