This 1961 Silver Proof Set from US Mint is a must-have for collectors. The set includes mixed denomination coins with mixed composition, all in an uncirculated condition. The coins were struck at the Philadelphia Mint and are ungraded, but are in mint-fresh condition and have never been opened. This set is a great addition to any collection, The set is unopened and is a great way to commemorate an important year in US coinage history.