There is an interesting article in the May 9, 2017 Numismatic News Issue that talks about the "ICTA task forceto fight Counterfeits" and in the May 8, 2017 issue of Coin World there is an article titled "Anti-Counterfeiting" that also discusses ICTA. Both arre worth reading.
Lacking "Copy" it is illegal, period. Ebay if warned of this generally takes its time, but does delist the seller. Problem...they pop up again under a new address and name.