It's difficult to say, because it appears to be a mix of parts.
I cannot comment on blade, sheath could also be Riau-Lingga (very similar and almost the same to Terengganu form, which tend to become boxier approaching newer times) - see the well known golden Sultan's Keris. Pendongkok could come from everywhere, but is not typical for Peninsula. Hilt is more likely Sumatra/Straits.
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