This is a 1/1 NGC label and grade for this coin. The Signed Mike Castle ultra cameo is Exquisite. NGC pop 1 with Mike Castle Signed label. Graded as PR 70 by NGC, this coin features a commemorative design in honor of the Olympics. It is signed by Mike Castle and has a sleek proof finish, making it a valuable addition to any numismatic collection. With only one known coin in existence with this specific certification, it is a unique and desirable piece for collectors of modern gold coins.