The 1972 Error Lincoln Penny Rim Cud is a circulated small cent coin minted in Philadelphia. This particular coin features an error known as a rim cud, where the rim of the coin is flattened and irregular. Despite being circulated, the coin retains its original brown color and has not been certified for its authenticity. As a piece of US coinage history, this error coin holds a unique and collectible value for numismatists interested in rare and unique coins.