The 1988 Proof set is a genuine, complete, and original collection issued by the US Mint, featuring coins struck in copper with a proof finish in San Francisco. This set includes coins from the United States with certification from the U.S. Mint, making it a valuable addition to any coin collection. The set comes from an unopened box, ensuring its pristine condition and authenticity. Ideal for collectors and enthusiasts looking for a high-quality set of US coins from 1988.