I thought CT is a place to share opinions. When someone has an opinion, they should be able to back it up. You cannot say a coin has been treated with acid when its obverse looks 100% original with a loss of design, some rub and hairlines. I want that coin! If it were mine, I would have it slabbed as this is a major error IMO. NOW, instead of avoiding the issue, getting angry, and name calling, us know what evidence you see in the photo that it is altered w/acid. Others will happen into this thread in the future and they will want to know "What happened to this coin" PS IMO, The bi-colored coin look altered outside the Mint.
If no one continues to discuss your coin here, send photos of your coin to Ken Potter, Mike Ellis, or Collectors Clearinghouse. Write them a nice note that you are a new error collector and opinions are divided about what your coin actually is. Enclose some $ for return postage. Tell them "God" made you do it PS Send the photos to a TPGS. People do this all the time. Also, I would try only SEGS, ICG, and ANACS. In my experience, the "Big Two" are usually to "Big" to reply and ask you to send the coin in. At least two of the others will take a stab (as we are doing here) and then ask you to send it in. Which you don't need to do BUT I would if they say probably struck thru error.
The reason I ask is, it reminds me of a washer coin .. Looks like the mint could of cleaned out the wash machine ...
No it is a struck thru also. Where are you getting these? I'll tell you who to call, why, and what to say in PRIVATE CONVERSATION.
Oh, we were commenting on a misaligned die and the "depth of the offset" when some poster asked how did we know the "depth of its edge" w/o seeing it in the photo
First two acid damage. Remainder so grossly damaged nothing more can be said. (If you are lucky they might be accepted as cash.)
OK.. your 2nd and 3rd coins posted I say yes to Struck Through Grease.. I will try to explain my reasoning why your 1st Quarter might not be a struck through. I'm not saying hat I'm totally correct but it's years of observation and evidence that leads me to my opinion. Normally on a Major Struck Through (Grease), only the Obverse side would be affected. I have an example that I want to share with you. This is my Quarter. Now looking at your Quarter and seeing both the Obverse and Reverse side looking as they do and also taking into consideration that it's a more modern Quarter which was minted with modern machinery in order to produce better quality milling of coins in order to avoid errors such as my 1977 Quarter, I have to state that I don't see the similarity with a true Struck Thru and your Quarter. My Quarter has a pitting factor while yours has a smooth almost melted quality to it. I don't know if this will help and not everyone will agree with me but you can take it or leave it @Insider
What is visible on the surface of a struck thru depends on what it was "struck thru." Can we get total agreement on this at the least?