The Kennedy Half Dollar is a fifty-cent coin produced by the United States Mint since 1964, commemorating President John F. Kennedy following his assassination. The 2005 Kennedy Half Dollar is part of a series that marks the ongoing production of this coin, which is known for its distinct design featuring Kennedy's profile on the obverse and the Presidential Seal on the reverse. The "N A" designation typically signifies the coin's condition or grading level, which is an important factor in its collectibility and market value. Collectors often seek specific years, mint marks, and conditions to enhance their collections.