has two empty square holes above Ziliao as well as Zihou, due to the loss of the two copper movable types. Song dynasty bronze block embedded with bronze metal movable type printed paper money was issued on a large scale and remained in circulation for a long time.

The 1298 book Zao Huozi Yinshufa ???????? by the Yuan dynasty (1271-1368) official Wang Zhen mentions tin movable type, used probably since the Southern Song