The standard for Silver Bar is that it is made up of 99.9 percent pure silver or 0.999 fine. They vary in sizes, ranging from less than one ounce to up to one thousand ounces. Common sizes are one kilogram, one ounce, ten ounces, and five grams. They are sold from specialized traders and even over bank counters. They tend to have the lowest premium over spot, but aren't as beautiful or recognize