Chinese teaware, white porcelain gaiwan (lidded bowl), teacup, and teapot set. Jingdezhen "firefly" porcelain (light passes through from the inside). This is also known as "firefly carving" or "firefly hand." It originated in Persia and was mainly produced in Jingdezhen during the Ming Dynasty. It involves creating rice-grain-sized holes in the porcelain, filling the carved-out areas with transparent glaze, and firing it to create transparent patterns. While it was commonly seen during the Showa era, it is now discontinued, with no factories producing it, and is difficult to obtain even in China. When light shines on it, the carved-out areas appear partially bright and translucent. You can visually enjoy its beauty and the way it changes. This is a used item, so there may be tea stains. Please check the condition before purchasing.