The image is a photograph of a sign that reads "Plain Tri-color Porcelain" in Chinese characters. The sign is attached to a beige wall with two screws. The text is written in black and is in a traditional Chinese font. Below the text, there is a description of the product, which states that the product is one of painted porcelains manufactured in Jingdezhen in Ming and Qing Dynasties. The product is yellow, green, purple and blue in color. The main colors of the porcelaine are the plain tri-color porcelain, which is used to create a red and white color scheme. The body after painting at low temperature, the manufacture of plain tri -color porcerain began in Ming Dynasty and matured in Zhengzhou reign of Ming Dynasty. It got new development in Kangxi reign of Qing Dynasty and became quite popular.