I am pretty new at this. I have a 1968S Lincoln Penny which to me looks pretty nice for a 51 year old coin. It would be helpful to me if some of the very knowledgeable people on this site would give me their estimate as to what kind of grade a coin like this would earn. This way I can have a better idea for future coins as to what grade those might be. My first thought was to find out how to clean it up first, but I have come to see from my other post on the modern coins forum that it probably is not a good idea.
I am attaching a few pictures and I am hopeful they came out well enough so the coin can be properly evaluated.
Many thanks in advance!