2 Javanese krisses

[Paul B.]

Hi,

These 2 blades (in Djogjakarta dress) are coming my way. Pics from seller.
Attracted by the elegant blades and wonder what dapur we see.
It is a 7 luk and a 3 luk (usually called Jangkung). The last strech of the 7 luk is quite straight (I know this feature is present in a Megantara blade but there is no further similarity).
Pamor is standard Beras wutah of Ngulit semangka?
Hope anybody will enlight me.