Inscription
Form of Old Mon alphabets

Phra Pathom era
5th-6th centuries CE
It is an ancient Mon-language epigraph discovered at Thailand's oldest Buddhist stupa, dating to the Dvaravati period (6th-11th century)
It is an ancient Mon-language epigraph discovered at Thailand's oldest Buddhist stupa, dating to the Dvaravati period (6th-11th century)

Lavo,lapburi era
8th century
It was an early Southeast Asian Brahmic script, derived from Pallava and adapted for Old Mon inscriptions in Thailand and Myanmar.
It was an early Southeast Asian Brahmic script, derived from Pallava and adapted for Old Mon inscriptions in Thailand and Myanmar.

Thaton era
11th century
It represents a transitional phase between the rounded Pallava-derived characters of early Mon inscriptions and the emarging Burmese script
It represents a transitional phase between the rounded Pallava-derived characters of early Mon inscriptions and the emarging Burmese script