This coin is a 1989 American Silver Eagle, a prominent and popular collectible within the numismatic community. Struck by the San Francisco Mint, this coin features a mint mark of 'S' that denotes it as a proof coin. The American Silver Eagle series is highly regarded for its design, which showcases Adolph A. Weinman's iconic Walking Liberty motif on the obverse, while the reverse presents a striking image of the bald eagle, designed by John Mercanti. Measuring 40.6 mm in diameter and weighing 31.1 grams (approximately 1 troy ounce), this coin is composed of .999 fine silver. The total mintage for this particular year was 617,694 pieces, which contributes to its availability and market value among collectors. As a proof coin, the surface is polished to a mirror-like finish, allowing for exceptional detail and aesthetic beauty. Its denomination is set at $1 (One Dollar), reflecting its status in both commerce and as a collectible item. In summary, the 1989 San Francisco Mint American Silver Eagle Proof coin is a beautiful representation of American craftsmanship in coin design, combining artistry with intrinsic value, making it a desirable addition to any collection focused on U.S. coins or silver bullion.