ID for Ancient Kujang / Kudi? Hindu /Siam/Persian influence?

[Battara]

Originally Posted by Andrew

Very interesting. How do you know this is 1000 years old?

I understand Andrew's question. They have been making some of the same style and type of pieces for centuries without much alteration (if any at all). I agree the style and type is the same, but is this actual piece 1000 years old or so (rust not with standing since something 20 years in acid soil would look the same)?