Tangguh/ keris blade age indexing thread

[kulbuntet]

Hello, like i post on other thread(http://www.vikingsword.com/vb/showth...8&page=3&pp=30) is this thread made to get/gather info about Tangguh (the Javanese blade age indexing system) and age indexing in general. I hope that the ones with experience and knowledge of this, wil give us a explaination and try to give as much info about it. Using indicators combines with photo's/illustrations to make this a good info thread about the age indexing system.

All thanks in advance for trying to learn us about it, and posting the info.