Sunshine Mint 5 Ounce .999 Fine Silver Bar (MintMark SI) *Mint Sealed* - This is a 5 ounce .999 fine silver bar produced by Sunshine Mint. The bar has the innovative security feature, "MintMark SI", a unique feature which 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. The bar is still sealed from the mint.