in the third or fourth century AD. It is also at in this late period period LP X, dated from 200 BC to AD 300(White 1990:125) that we find similarities with the the material culture at Lao Pako White Labbé mal 1985) An artefact type that is represented Sign and at both Lao Pako The Ban Chiang is the cylindrical roller(also called a the clay roller or clay seal in some publications).