1990 penny die error? 0

[Jaynh]

[Greenstang]

What do you see as an error?

All I can see is some zinc rot and environmental toning.

[Jaynh]

10 minutes ago, Greenstang said:

What do you see as an error?

All I can see is some zinc rot and environmental toning.

Looks like there's letters under the date 

[Greenstang]

Your seeing something that's not there. It is impossible during the striking of a coin to have extra letters suddenly appear that were not on the die to start with.