I have to admit that I’ve never heard of these until my brother sent me three of them for my birthday, which was in May. Somebody somewhere must’ve thought of a new way to make money, but it’s nice to have these. They are actually 24 karat gold and in the first picture he sent me two of those. That means I only need 1998 more of them and I will have one full ounce of gold. The second photo I only need 499 more to have 1 ounce of gold. On both of the backs are blank, but you can see the reverse print from the front of the note. Somebody’s making money on these.