Due to gunk on the coin I can't tell which stage it is,should I just let it be?. http://www.varietyvista.com/02a LC RPMs Vol 1/1944DOMM002.htm
Leave it as is. Stage is a less important factor, but fun when you are trying to collect the stages for a particular variety. If I had the other stages and this was up in the air, I might explore it a bit further. But if this is your only stage for now, stick it in a flip until you have another. Fun find!