So true Shooter, is no way (without DNA testing) to prove that the pce you buy comes from a legal tusk.
Every oz. of Ivory I have ever sold or used is 100% legal,most 90 to 150 yrs old.
In the past two days I have talked with every major Ivory dealer in the U.S. They are in panic mode as some hold hugh stocks of leagal Ivory.
The law is the law and they all will abide by it.