Collectible coins, specifically in the context of the United States, include various denominations such as the 1 cent (penny) and 50 cent (half dollar) coins. Proof sets, particularly those from 1960, are highly sought after by collectors for their high-quality minting and distinctively shiny surfaces. These sets typically contain coins that have been specially struck to produce a mirror-like finish, enhancing their aesthetic appeal and value in the numismatic market. Collectors often seek out these proofs for their completeness and historical significance within specific year collections.

Item Denomination Series Year Mint
1960 1c-50c Proof Set Large Date 1c-50c Proof Sets 1960 Philadelphia