The 1992, 1994, 1995, 1997, and 1998 US Mint Proof Sets are collections of uncirculated coins with a proof strike type, showcasing various denominations of coins from the United States. These sets have been certified by the U. Mint, ensuring their authenticity and quality. Each set likely contains a selection of coins, such as pennies, nickels, dimes, quarters, and half dollars, all struck with a high level of detail and finish to highlight the design features of each coin year.