This 1970 Penny is a rare find for collectors due to its error of not having a mint mark. The coin features the Lincoln Memorial and was struck in Philadelphia, making it a valuable addition to any collection. The penny is composed of copper and has been circulated, adding to its unique character. It is ungraded and uncertified, making it a great find for those just starting their collection. This small cent is a must-have for any coin enthusiast.