Commemorative coins are special issues produced to honor significant events, people, or anniversaries, often released in limited quantities. In the United States, a notable example is the 1947 San Francisco commemorative coin, which was part of efforts to celebrate various historical milestones. These coins typically feature unique designs and are sought-after by collectors for their historical and aesthetic value. The 1P denomination is not commonly associated with U.S. commemorative issues, as most are produced in higher denominations such as half dollars or dollars.

Item Denomination Series Year Mint
1947-S 1P USPI, G278MacArthur 1P Commemorative Issues 1947 San Francisco