It's not an official government-issued coin. Its a privately-made bullion round, designed to cash in on post-9/11 patriotism. Is it genuine silver? Who knows? It's as good as the name of the company that made it. If the company that made it is unknown, then so is its silver content.
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