Is this the product you are talking about? I have seen it on Taobao. You can find it by searching "Swallow Health Tea House Tea King" directly on Taobao. The following are the characteristics of this product:

Mabang Tribute Tea Century Collection Cake

This cake is provided by Yunnan Xishuangbanna Huanggong Tea Factory with 2000 grams of ancient Gong Gong Mabang tribute tea century collection cake. The ingredients are selected by Mr. Liang Jiye, the person in charge of Huanggong Tea Factory. Xishuangbanna stretches for 800 miles, with an altitude of Each of the six ancient tea mountains with a height of more than 1,000 meters selects and collects the raw materials of sun-dried green ancient tea from trees with large leaves that are more than a century old, and carefully uses pure traditional cloth bags, stone grinding and other techniques to make it. It has plump buds, soft leaf bottoms, and a mellow taste, which truly highlights the mellow, true, and sweet taste of Pu'er tribute tea.

The tea cake was served as a consultant by Emperor Aixinjueluo Songshi, and was personally signed by him, member of the Standing Committee of the National Committee of the Chinese People's Political Consultative Conference, Vice Chairman of the Xishuangbanna Prefecture CPPCC Zheng Peng, and Chairman of the Huanggong Tea Factory Mr. Liang Jiye. The tea cake was sold at auction for 88,000.