Agreed with Satria,
Just to add a little.
Looks like a Surakarta blade with kembang kacang Nguku Bima.
Heavy wear on the 'dada', between luk 1 to 3, 3 to 5, 5 to 7 and 7 to 9.
Wear might be due to rust-removal and etching, over the years.
The ukiran (hilt) is of gaya Surakarta wanda Yudawinatan.
Tundung Mungsuh is a pamor pattern found on the 'ganja' area.
It looks like a sideways 'V'-shaped formation.
The point of the 'V'-shape is pointed toward the 'sirah cecak' area.
This pamor pattern is deemed suitable for those who are warriors.
The meaning of Tundung mungsuh in Javanese is literary 'to oust the enemy'.
BTW, this keris does not have pamor Tundung Mungsuh.
