This type of plat porcelain dish was produced primarily during the early Joseon Dynasty. It has a height of 22.6cm, mouth diameter of 4.5cm and base diameter of 8.7cm. The middle of two of the sides, front and back, is flat and low. The seal characters engraved on it are blunt. White mud and hand-carved flower patterns give this dish its transparent light blue color. There are different patterns on the front, back and side: 1. Two fish at the front and back. 2. Different composition patterns on the front, back, and sides. The fish pattern of it is originally of buncheong used johwasubeop (cutting skill of flowers patterns), which means the artistic handicraft of expressing white tracks: sketching patterns on porcelain dishes in white mud before scratching the white earth from the surface. Both sides are divided into three parts. There are peony flower patterns on the top and middle, and plaintains below. The exterior of it is ash blue with a little green clearing the comparison between the part of white mud and that of non-white mud.