This 1988-S Proof Olympic Silver Dollar is a commemorative coin from the United States Mint. The coin is made of 90% modern silver and clad composition, with a fineness of 0.9. It features an uncirculated strike type and comes with a certificate of authenticity and box. The coin was minted in San Francisco and has not been graded. The denomination of the coin is $1 and it was produced in 1988. This coin is a great addition to any collection for collectors of modern silver and clad coins.