2015 Niue $2 1 Oz. Proof Silver Complete America's National Monuments Series Set of 4 Coins PF70 Ultra Cameo Early Release Certified by NGC in Original Box W/COA's (ONLY 5000 MINTED!) - This four coin set is a complete collection of the America's National Monuments Series. Each of the 1 ounce silver coins commemorate a different national monument: Lincoln Memorial, Jefferson Memorial, Vietnam Veterans Memorial, and Washington Monument. These coins have been struck with exceptional designs, designed by Michael Glass. These coins are legal tender coins of the island nation of Niue for $2, and bear an image of Queen Elizabeth on their obverse. These coins were given an incredible Proof 70 Ultra Cameo grade by NGC. This is the highest grade possible, and this set only has a very limited mintage of only 5,000 coins! The set comes in the original box, and each coin comes with an individual certificate of authenticity.