NORTH CAROLINA U.S. State Quarters with Designer Signature Collectionof 2 Pieces ( Philadelphia & Denver Mints )both in high grade MS-66 Statehood Quarters (issued 2001 ) each signed by artist Mary Ellen Robinson, one from each mint location P (Philadelphia )and D (Denver ). Each coin is officially graded’Superb Gem’ or Mint State ( MS ) 66 condition, amazing when one considers these were struck to be put into circulation. While modern Proof quarters regularly grade at PR66, it is much less common to find a regular issue quarters graded Mint State 66. Allcoins areguranteed and encapsulated by ICG, one of the premier grading services for U.S. coins. A truly special collection of 2 North Carolina State Quarters. These make wonderful gifts.