All coins appear CAMEO This SPOTLESS 1956 Proof Set consists of 5 coins with a composition of 90% silver, including denominations of 1C, 5C, 10C, 25C, and 50C. The envelope is in PERFECT condition. The set is struck as proof coins at the Philadelphia Mint. This set is just taken from storage and is ungraded, with certification from the U. It is a collectible and rare piece from the United States, showcasing the craftsmanship and beauty of silver coins from 1956.