Mid 1970s Wenshan Baozhong.
The tea is not that bad, but the sourness is very high, I'm using a gaiwan though, maybe a pot can subdue it. By the 3rd infusion the sourness receded a bit but so did the charms of the tea. Very short durability. No qi.
Some aged TGY and Shui xian I've tried had very strong Qi. I am not sure if old Baozhong have Qi and only this one didn't have any at all.
Does anyone know?
Edition: I am feeling some qi by the 4th infusion, warming and nice feeling.
This is the second time I am trying this tea, I have to clarify regarding its durability that the first time I used a 100 ml gaiwan and around 4 teaspoons, that time the tea gave out at the 3rd infusion and don't remember to have felt the qi as I am feeling it today. This time I used a 60 ml gaiwan and 4 teaspoons too. With today parameters the tea lasted for about 7 infusions. Perhaps its durability is not that bad. But my experience with Baozhong is limited so I can't compare it with other aged Baozhongs.
However, the tea looses its strength drastically by the 3rd infusion according to the vendor the tea has lost some strength because it has been roasted many times..