Collectible coins encompass various types, including historical coins, commemorative issues, and bullion coins. The United States has a rich numismatic history, with notable examples such as the Six Pence coin from the 1700s, which holds significance in colonial currency. Massachusetts silver coins, minted in 1652, are among the earliest coins issued in America, featuring unique designs and characteristics reflective of the time. Philadelphia, as a pivotal minting location, has produced numerous collectible coins, including many famous series such as the Morgan and Peace dollars. Collectors often seek coins from specific eras or with particular mint marks due to their rarity and historical value.