1991 Lincoln Cent--Overstruck on a 1991-P Roosevelt Dime--MS-66 (NGC). Brilliant silver-gray surfaces with plenty of the undertype discernible on both sides, the obverse of the cent overstruck on the reverse of the dime. Faint traces of the dimes date are discernible, and its P mintmark is clear when observed with the aid of a loupe. A scarce double denomination error from the modern U.S. Mint.