One no grid c cupreous sword with snake-shaped stem head. The Western Han Dynasty. In 1978, unearthed in the Han Dynasty tomb of Zhongshui in Weining .The sword body and the sword stem are connected into an inclined shoulder shape, the stem is hollow and oblate, the middle part is slightly bunched, the stem head resembles a snake head, and eight symmetrical triangle are hollowed out and decorated on the stem. No grid, the body ridge is not obvious, the double blades are straight, the cutting edge is sharp, which is a typical "Dian sword" style. The overall length is 38 cm, of which the stem length is 11.4 cm, the body length is 24 cm, and the blade width is 4.5 cm.