I'm afraid I'd have to add my voice to the "it's a keychain" chorus.
What gets me, in cases like this, is exactly how many coins are we buying here: are the two pieces considered one legal tender coin, or two? Given that they are actually two separate and separatable pieces of metal (I own and use a keychain just like this, and the two pieces are always coming apart on me), "two" would be the logical answer but the technical specs seem to indicate the answer is actually "one" - in which case, which piece is the actual coin?
The specs are also unclear, to me at least, as to what each piece is made of. Are they both solid silver, or just the core? If they are both silver, how does the "1 ounce" total weight split between the two pieces?
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis