Need help to ID Samurai(?) sword

[Amuk Murugul]

Hello everybody,

There is this sword(?) which the seller describes as Samurai(?). It is about the same total length as a keris in a Yogya Ladrang (length unknown).
The hilt+pommel is about a third of its total length.
The hilt looks to be metal, with undulations along it, reminiscent of the metal ferrules/olives on the hilt of a Moro Kris.
The pommel is rather large (about a third of the length of the hilt) and in the shape of a head of a rearing cobra.
The scabbard looks like wood/leather, with a stub cap at the tip. At the top of the scabbard, there is a piece which is either part of the scabbard, or the hilt guard.
Unfortunately, this is all that I could glean from the one not-so-clear picture; I also could not get permission to copy it.
I just need to know what I am dealing with, before I spend time and effort negotiating in a different language.

Thank you for any assistance you can give me.