The U.S. Mint 1955 Philadelphia Uncirculated Set in Original Treasury Envelope is a valuable collection of coins from the United States. This set includes coins from the year 1955, struck as proof in the Philadelphia Mint. The coins are ungraded and come with certification from the U.S. Mint, ensuring their authenticity and quality. Housed in their original treasury envelope, these coins are a nostalgic piece of American numismatic history for collectors and enthusiasts alike.