Another Before and After

[Jean]

The soaking did improve the eroded texture a bit IMO so I find it positive. Notice the tip of the blade made from a different metal (replaced or original harder steel?).
The most interesting feature of this kris is the sheath which looks to originate from Banjarmasin in South Kalimantan so the whole kris may be from there except the hilt, a rare find, congratulations!