keris for comment, naga luk-13

[ferrylaki]

This is an example of keris nagasasra ( luk-13 ).
the keris it self looks clean, but the surface iron and pamor looks suspicious.
at the first time I saw this keris, I really thought this is a new piece being threated to look older.
I have a doubt to determine the tangguh.
I hope the picture is good enought.

I must say the gonjo has different material from the blade.
the pamor...I have no idea (wos wutah???)

any information or comment would be appreciated.
Thank you


FERRYLAKI