Collar die clash? I'm far from knowledgeable about errors, but from what I've seen and read about "railroad rims" it can be caused by the die getting damaged and having a bit of a rim clash, which is then transferred to the other coins. Pam, I'm learning with you on this one, because I really haven't investigated the cause for things like your coin. This video sums it up pretty well at about 3:10. Also;https://www.ngccoin.com/news/article/9216/mint-error-coin-chronicles-partial-collars/
I try not to even focus on errors or danage. Sometimes it just stands out to me. MADS come a dime a dozen lol. Especially the zincolns lol.