The product is a 1991-S American Silver Eagle Proof coin graded at PR70 by PCGS. This coin has a fineness of 0.999 and contains 1 oz of silver. It is produced by the U.S. Mint and is a highly sought-after collector's item due to its pristine proof condition. The certification number for this specific coin is 51808078, adding to its uniqueness and collectibility among numismatists.
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