Looks like a nice example of MD to this non-expert. There is some on the obverse as well, under the chin.
Is it in a graded slab or just a plastic holder? It looks like it's in fairly decent condition for 1949 disregarding the machine doubling.
it is in a airtight with the top half off do you think it may be worth getting graded could it be 66 or better
I don't know but the others may answer that, but I think a 66 would be quite a stretch it looks circulated.