This is a celadon porcelain peony arabesque three-legged bowl (stone iris bowl) from the Ryusen kiln of the Ming dynasty.
It is an incense burner that was converted into a stone iris bowl, and since the Muromachi period, it is also called a stone iris bowl because it was planted to decorate study shelves and different shelves.
A peony arabesque pattern is drawn around the three-legged torso. Deep intrusions run through the pot. If it weren't for this, it would be a museum class, and it's very regrettable, but it's a wonderful gem that has been carefully handed down in the tea house. With wooden box.
