Sellers have an obligation to know what they are selling and not mislead buyers. This seller got the coins, and I'm pretty sure he got them in bulk from China or at a cost indicating they are not genuine. Therefore, an HONEST seller would leave NO QUESTION about the his merchandise incorporating REPLICAS and furthermore would return those without appropriate COPY additions for those that meet the LEGAL requirements. We're not talking about shady politicians splitting hairs. We're talking about things that really matter. Eliminating FAKES.
Here's a belt buckle from another seller, listed in the Exonumia > So-Called Dollars section. 'BELT BUCKLE HAWAII DOLLAR HONOLULU KING KAMEHAMENA' http://cgi.ebay.com/BELT-BUCKLE-HAWAII-DOLLAR-HONOLULU-KING-KAMEHAMENA-/280514067992?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item414ff0fe18
One significant difference is that this seller is not displaying photographs of both the obverse & reverse of the coin , with no copy stamp on it. This seller's coin could have the required "copy" mark on the reverse. This seller is not blatantly advertising the most important features of most coins , that being the condition of both the obv & rev. If both sides were displayed and it did not possess the required "copy" mark ( if it is a copy ), then the seller would be using the potentiality of it being authentic as a selling point.
Plus it has a "buy-it-now" price of a much more reasonable $25.00; I doubt if anyone would have a problem with the OP's seller if he formatted his auctions like this one.
I have not looked at the coin myself, BUT I bet the side encased in the buckle that is not visible has a mark showing it as a copy. Even the mint currently stamping coins in Singapore is careful not to violate US counterfeiting laws. They can operate legally. These buckles are jewelry and being marketed as such. I truthfully don't see any violations, but when dealing with coins especially, it is Caveat Emptor !
Well, you haven't looked at his auctions... not only does he show both sides of the coin, he shows it removed from the buckle. If it has edge lettering, he shows that. As far as Singapore complying with U.S. law... well, they may be doing just that. But I assure you, the Chinese are NOT.