9.
A five wave blade, dense, grained material, the hat is
pointed and the face is stylized. Material indicates
good age, but I can see no indicators that might help
fix any era or period, other than that is does have good
age, indicated by the material.   
The wrongko is of course recent, but it is worthy of
note that it is a gayam terusan, and the product of a
very skilled m'ranggi.                                 10.1"