The tombak comes from Yogyakarta and I was told it is a rare dapur described as "Tombak Korowelang with 13 luks" The blade has a lovely strong sent, I believe the previous owner must have looked after this tombak well.
I think Korowelang is not the correct description for this tombak though
Photo of Korowelang pamor from:
http://www.heritageofjava.com/keris/pamor/index_7.html