A "Drum-nail-lidded box' (鼓钉盖盒) made of ceramic with an amber-coloured marbled glaze and decorated on the lid with protuberances or nails. The shape is originally derived from ancient bronze 'Dui' prototypes consisting of a vessel supported by three legs with a dual-purpose cover, meaning that it was used to contain and eat grain. In the Song period ceramic wares were used for people's daily needs. Such bowls usually have sinuous legs with a line in the middle instead of being completely rounded.