This 2023-S NGC PF70 Innovation Dollar 4 coin proof set is a must-have for collectors. The set of $1 coins featuring innovative designs that celebrate American ingenuity and achievements. Each coin is certified by NGC and has a unique certification number. The proof coins were struck at the San Francisco Mint and have a PF-70 grade. The coins are beautifully presented in a display case, making them ideal for showcasing and preserving. Add this impressive set to your collection and own a piece of American history. Better Hurry They are selling Fast. Low Population. They did not grade well.