Pamor identity, help

[Lei Shen Dao]

Hi dear keris lovers

A friend of mine acquired an old keris.
However he would like to learn more about the pamor.

He has been told Madura keris, tanguh Majapahit (?), pamor Bungkus (?).

I know that the tanguh estimation is something very difficult from some photos only, what about the pamor?

Thanks in advance.