i'm not sure, if the entire edge is worn, then how come the face show similar wear- additionally, the reeding would be gone by then, but it is still surprising sharp. Also, the top-right side on the obverse is sharp and corresponds to a similar sharpness on the bottom-left of the reverse.
I just shot it with some other coins because i thought it would be more interesting than my bedsheets
It really is not wear and tear, but I am not sure what the official term is for that type of strike, but they are relatively common, I have seen quite a few like that.