Sealed Sheet of (10) Sunshine Mint 1 Ounce .999 Fine Silver Bars (MintMark SI) - This lot is a sealed sheet of (10) 1 ounce .999 fine silver bars, produced by Sunshine Mint. The bars have their innovative security feature, "MintMark SI", a unique feature helps verify the bar's origin and .999 fine silver purity. The obverse shows the Sunshine Minting eagle with sun rays in the background, and is also stamped with the purity and weight. The reverse shows a repeating pattern of rising suns and has the "MintMark SI" feature in the center.