Hi all, I was using my new USB Microscope last night and ran across this 1991 D Lincoln Mem Cent. I notice it looks like there is clear doubling in the Memorial stairs (west side)and on the columns on the west side. Then on closer inspection I see lots of North and South shading (DD?)on the words: "United States", "One", etc.
Can anyone give me feedback on this as I have not found it listed anywhere else.
Thanks

