I'm not sure how to make those pictures bigger (other than taking new ones, which as you can see, I'm not very good at).
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The 1958 looks like it might have a spot of corrosion at the 1:00 position (by the hair) and the left wheat stalk looks like it has a nasty nick or scratch.
Yes, there is some sort of spot there. As for the left wheat stalk, there is a small scratch, but it's hard to see.