Not being a knowledgeable member, still new to collecting but have collected coins for years mostly for the hunt, I have 600+ wheat backs plus other coins from any/everywhere, any date I can see what your trying to say mostly in some of the letters like the 2nd t in t trust. I took out some of my 1924's and given their age alot of what your pointing out seems to be on some of my 24's BUT like I said I'm new to really studying the coins, so I guess my 2 cents are worth just that. I hope someone tells you something of more value, I'd like to learn. Sorry for this long winded waste of your time
Maybe 1 of 2 things going on, or both Die Deterioration and Small Laminations... all common on Wheat Cents Nothing major with no premium.