Gu Quan 顾泉, 130ml, Huang Long Yuan's National-Authenticated Huang Long Shan 4th Quarry Di Cao Qing, by L4 Assoc Master Du Cheng Yao 堵程尧。

Video and Paper Certification with Associate Master Artist Du Cheng Yao, 助理工艺美术师 - 堵程尧 for every Artwork of his procured. 

Gu Quan 顾泉, $590, 180ml, Huang Long Yuan's National-Authenticated Huang Long Shan 4th Quarry Di Cao Qing 黄龙源国家验证唯一纯黄龙山四号井底槽青, from Assoc Master Du Cheng Yao 助理工艺美术师～堵程尧。
This is specially brought to you by Assoc Master Du, also using Huang Long Yuan's National-Authenticated Huang Long Shan 4th Quarry Di Cao Qing!  with Huang Long Yuan's regulated Sticker of Authentication and certificate by Assoc Master Du.  This is worthy as your cherished heirloom, and this is the Most Affordable Huang Long Yuan's National-Authenticated Huang Long Shan 4th Quarry Di Cao Qing Zi Ni work so far!  Our Artists really care for you dearest Friends and promulgating exemplary ZiSha compositions to you friends all around the world!  Cherish this crazily-priced Holy Grail of a ZiSha Clay: Authentic National-Authenticated 4th Quarry Di Cao Qing here presented by Du Cheng Yao at only $590.  Beguiling value.  A Totem to have on your Tea Table!  Grab it.  And enjoy the beautiful steeping and nurturing of your tea pot with amazing patina along the way!
～～～
Assoc Master Du, as usual being young and amazingly skilled, is able to look at a two-dimensional photo of the Ming-Qing historical pieces AND TRANSLATE them into true-to-life in perfect likeness and proportions!

Each ZiSha Work requires weeks of early planning, FULL-SIZED test shapes.
Many trial-and-errors, practicing and perfecting.
He thanks you dear Friend and Patron for your kindest support and adoption of his hard work back to your home and onto tea table to serve you great teas.

After receipt of this work, we will arrange a Video Certification call for you with Assoc Master Du Cheng Yao.  Assoc Master Du THANKS YOU Esteemed Friends for your kindest support of the ZiSha Art!  He is very happy to see you on the video call with him just like many had done so!  Welcome!