eBay "liquidated" my antique blade!

[Sajen]

Originally Posted by adamb

I am not interested your sorry-not-sorry apology, just an explanation as to how one would go about applying for a CITES permit through the relevant authorities in both the US and Australia when the materials in question are unidentified.

Accept my apology or don't—that is entirely up to you. You state that, according to the label, the keris dates back to 1809; did plastic materials even exist back then?
Ivory of some sort always needed a CITES certificate, sadly. When you had been informed you should have known this.

And as a collector, I assume that you knew full well that it was, in all likelihood, ivory. In this case, it makes absolutely no difference whether the seller knew this or not. Ignorance plays absolutely no role in this instance.