Sunshine Mint One Ounce Silver Rounds
feature a brand new security function, MintMark SI, which is now being incorporated
into all new Sunshine Mint bullion products. This new feature is encrypted in the center on the reverse of the round, surrounded by the sun’s rays.
When viewed through Sunshine Mint’s special decoder lens, the central security design displays the word “valid”, but when the decoder lens is rotated ninety
degrees, a sunburst is displayed. These two different views serve to authenticate the new one ounce silver round.
The obverse of these silver rounds bears the famous Sunshine Mint eagle along with the sun and its rays in the background.
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