Japan Nanbu Tetsubin, Koizumi Nizaemon, Uba Guchi Hojyu Gata Tetsubin日本南部铁瓶，御釜屋 小泉仁左衛門 十一代 姥口宝珠形 供箱 KoizumiNezaemon 口盖子母线天压地，壶盖中央一粒圆珠壶钮，工艺细致，整体光素简洁，憨厚质朴，有返璞归真之美感。

口盖子母线天压地，壶盖中央一粒圆珠壶钮，工艺细致，整体光素简洁，憨厚质朴，有返璞归真之美感。

and professional delivery

people began using paper as writing material

* Structured collectors

Japan Nanbu Tetsubin, Koizumi Nizaemon, Uba Guchi Hojyu Gata Tetsubin日本南部铁瓶，御釜屋 小泉仁左衛門 十一代 姥口宝珠形 供箱 KoizumiNezaemon 口盖子母线天压地，壶盖中央一粒圆珠壶钮，工艺细致，整体光素简洁，憨厚质朴，有返璞归真之美感。Ubaguchi Hojyu Gata tetsubin. Large (1. 9L); Giant (3. 2L) Large: W17. 0 x H12(Body) 25. 5 (with handle); base 11. 5cm, Giant: W20. 3 x H13. 2(Body) 27 (with handle); base 14. 2cm, The design draws inspiration from the exquisite beauty of a precious gemstone, with particular emphasis on the intricate detailing of the mouth. This specific design, crafted in the fundamental form of the Ubaguchi, elevates the Tetsubin to the pinnacle of craftsmanship,