Many examples and explanations about these old manuscripts at the link.
https://www.bangkokpost.com/life/social ... o-the-past
https://ebook.nlt.go.th/Exhibition/exhtml/cat.html
(Click on E-BOOK which gives you 46 manuscript examples. Clicking the other Thai tabs takes you to many more. If you have the Google Translate app on your phone with the camera function it should work, if the Thai text is from an era that the app recognizes.)
The National Library of Thailand is holding an online e-book exhibition featuring ancient manuscripts to help people learn about the country's rich cultural history.
Windows into the past
Windows into the past
Governments are instituted among Men, deriving their just powers from the consent of the governed. Source