no website on file — from open-source research, nothing to check against
Brand of Ji Yishun — 'master of three titles' (工艺美术大师, 陶瓷艺术大师, 工美行业艺术大师). 'Painting school' of Yixing ceramics: inlay, bas-relief, gilding on teapots.
website not found; source: baike.baidu.com — 季益顺, ysty.cn — 季畅园紫砂
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.