Help Keris bought in Yogjakarta

[shawfan]

Hi,

I bought this Keris in Yogjakarta. Can anybody tell me more about this Keris?
What kind of Keris is this? How old it could be?

If somebody could help me to answer these questions I would be very glad. Personally I do not know much about Keris but I like them very much.

Thanks a lot...