1999-P State Quarter. Delaware--Reverse Die Cap--MS-66 (NGC).This is a later state than the other reverse die cap on a 1999-P Delaware State quarter that we are offering in this sale. The die cap is much deeper, although the reverse still exhibits sharp definition throughout the design. On the obverse, very little detail remains from subsequent strikings. Lightly toned in pale silver iridescence, and visually appealing due to the error.