After a bunch of back and forth emails and me sending them photos, they claim it's not their die.. WTF!?!?!?! I looked at the coin that this die would have minted and it's an NCM coin... a 1990 Binion's.. how the heck can it not be their die?

Here's what they say at NCM:
This die was not made by us...ours had a different picture all together. To answer your earlier question...dies should not be in public hands unless canceled. We do not know how your aunt came into possession of them but possibly the casinos gave them to her?? Good luck with your search.