A keraton (?) keris in east javanese dress, where is the blade from?

[David]

Alan, i wonder if you have any further feelings on this hilt now that better photos have been provided. Selut aside i don't believe i have ever seen anything like this on a Sumatran keris. It does appear to have some age to it.
Hilt origins also aside, it is a beautifully carved piece of work and i'd love to understand where it might be from.