no website on file — from open-source research, nothing to check against
Gu Jingzhou Museum-Gallery — 'king of teapots,' great master of the 20th century; located in the Yixing Ceramics Museum, collection, exhibitions, workshops.
site not found; main museum of the great master of Yixing
The source export carried a verification date of 2026-08-16 — later than today, so the check could not have happened. The mark was removed; the original value is kept in the data.