Next keris from Polish Museum

[tuancd]

Dear Wolviex

Yes the method is good but can only work when the piece is registered for a long time...
In your case you can only work by comparison. But the books like Sier's give that opportunity.
Experts in datation start to be able to date metal by analysis of the crystallisation on the surface. It is still expensive and I'm not yet convinced of their accuracy .
For the model of ukiran you have, yes it's rare. And your model is quite refine. For comparison I'll attach picture of mine.
It's identity is Veiled Durga from East java. Durga beautiful before was punished and became ugly. So she wore a veil in order not to scare humans. You can actually see her unveiled on Bali, holding the veil in her back (see under).
This local adaptation of Durga life is to be compared with the cult of Nyai Loro Kidul or Nyi roro Kidul (goddess of the south sea worshiped in Java) who is also ugly or beautiful.

Any ways, the three Durga veiled I've seen were on east Javanese kriss.
Cedric