1600 Elizabeth I Shilling With An Overdate

Here is my representative Elizabeth I coin, a 1600 shilling. This is part of the sixth issue and the Spink number is 2578B.

This coin has an overdate on the reverse. I saw it when I bought the coin, but it was not marked as such on the PCGS slab. I can see 158? under the "1600." I'm sure that those of you who collect these coins know the last digit.

I find it interesting that a die would be taken out of service and then brought back after sitting around for over a decade!