The Lincoln Memorial penny is a one-cent coin that features the image of the Lincoln Memorial on its reverse side. It was first issued in 1959 to commemorate the 150th anniversary of Abraham Lincoln's birth. The coin is made primarily of copper and has become a popular collectible among numismatists. The obverse side of the penny displays a portrait of Abraham Lincoln, the 16th President of the United States. The design of the penny has changed over the years, but the Lincoln Memorial penny remains a significant part of American currency, symbolizing Lincoln's legacy and contributions to the nation.