The product is a set of 23 uncirculated proof Washington quarters from the years 1968-1989, minted in San Francisco. These quarters have a denomination of 25 cents and are part of the Washington series of coins issued by the United States. The coins are struck in proof condition and feature the image of George Washington on the obverse. This set would be a valuable addition to any coin collection, showcasing a significant period in American numismatic history.