1690 6/5 NGC AU 58 William Mary 4 Pence Error Groat Great Britain Silver Coin (23110704C)

Almost Uncirculated William & Mary England (Great Britain) silver 4 pence or groat sterling silver coin. Very rare date mint error variety where the "6" is a correction punched over a "5" erroneously installed by the die sinker. The lower curvature of the 5 can be seen within the circle on the 6. This should not be confused with an overdate which is an intentional effort to modify a date, such as 1691 over 1690, to preserve the usefulness of the die. Certified by NGC to AU 58. NGC does not acknowledge the 6/5, an obvious oversight. Toned with underlying luster. Outstanding portraits of the Royal couple. Catalog: English Silver Coins: 1869A (for the 6/5) rated as Rare. An interesting variation in obverse & reverse legend font size is noted.