Are These Errors What I Think They Are?

First coin in question is this one that I believe is a very minor Struck Through Grease error?






Second coin is this one which may be a scratch, but looks more like potentially struck through debris? If it's a scratch, it's an old enough scratch that it aged in color along with the rest of the coin.







Third coin, I believe, must be LDS. Still, I thought it was interesting enough that I may keep it anyway. Figured I'd share in case it's possible someone would think it's something different. It's a pretty deep and wide ridge partially underneath the letters and near the rim. In most LDS coins I've come across, there's similar rim issues, but they're usually raised- not indented.