Bugis Chieftain's Keris: does it exist?

[Battara]

I have heard of a Bugis Chieftain's keris and that the scabbard is fat with a wide wranga with possibly some silver, ivory, or little gold, but short and stocky never the less.

However, one knowledgable source informs me that such a creature does not exist. What do you folks think? If it does exist, what would it look like? And finally if they do exist for sure, are they truly rare?