Han Guan - Herb Boiler style
Di Cao Qing is a type of purple clay, usually used for better quality teapots by more skilled higher ranking makers.
This teapot is wood fired at a higher temperature of 1300°C, the exterior texture is more lava like due to the uneven high fire, also the color is uneven as the result.
Teapot was "raise" by black tea previously. Used a couple of times to season the clay, not used regularly.
Maker: Wu Rong Hua
Job rank: level 4 in 10, 1 being the highest, Guo Jia Gong Yi Mei Shu Shi - National Artist， 30+ years of experience.
Chinese coin shape multiple holes filter.
Collectible grade Yixing teapot from a well respected collector in Shanghai.