Looks like the 1862 ih was under water or in moist ground for a while. And the wheat i believe is a lamination peel error. Not sure what to think about the other looks like it may have been dipped or cleaned. Really cool finds though. keep it up
I have 10 thousand or more wheatbacks from 09 up to 58 and have never seen a peeling like that. What tool did you use to do that? LOL