We discovered this tea recently in Shenzhen - there were only a few cakes left in the shop, so we bought the remaining stock.
It was made in 2003 to commemorate the 65 year anniversary of Zhongcha. The storage has been very clean.
The tea seems to be made of unusually high grade material, with many strong bud and leaf sets. The taste is thick and concentrated. It has enough strength to age much further but is already very enjoyable to drink now. There is an obvious lingering aftertaste and pleasant aroma. This is an excellent aged tea. I only wish we had more.