I found this 1969 D dime in a coin roll. Looks like it was mashed multiple times with the back of another dime, but I'm not really sure. Any information would be appreciated!
You are correct in how this was made, its called a "squeeze job" Someone takes two coins, places them in a vice or something else that squeezes them together hard enough that it causes the raised design from one coin to be pressed into the other coin.
Let's not go there yet. Now, I only have your photo. Need better, more magnified area of "Liberty." The "raised ?" letters behind "Liberty" look in proper sequence. On fake errors made by putting two coins smashed together the letters are reversed and sunken into the surface. You tell us what you see and we'll wait for a larger, magnified photo - if you can - and see what others think. The rim damage behind the head indicates "smashed" but the "LIB" should be damaged also.
This photo enlarges and from what I can see, there is severe die deterioration and possibly some clash marks. Can you post a photo of the reverse also? JMHO.
It's so hard to see, but on the right side of the rim it's says , "in God we" and on the left is says "of American." It looks like that was stamped first and then liberty and the head and what not was stamped after...but idk. Lol I hope I explained that ok
Maybe someone can tell me if this appears to be clashed by this overlay. My eyes are not as good as they used to be but this OP coin might also be possibly rotated ob./rev. slightly? Impossible to tell without the coin in hand?
Due to the lighting, your first photo was the best for me after I learned how to blow it up. Superdave and others here are very knowledgeable so I'll bet your coin will cause a good discussion. You should post a photo (like the first) of the reverse so we can look for damage from what some think is a "smash job." Also, now I see a backward "AM" which is the way an alteration should look! So I'm starting to weaken.
There are lines on the face as well but my picture quality isn't the best, but it looks like a penny was clashed with it
Here is what I believe makes this difficult. If something was impressed into the coin to make a fake error, the head (high part of relief) would take on some design as your coin shows. However, the added design appears to be lower than the "LIB" area without damaging the tops of the letters. That part might even be a partial brockage. Thus, your coin shows characteristics of a genuine error and an altered coin including worn dies and rim damage. Post it on Coin Universe as Mike Diamond and Fred Weinberg are on that site and IMO, their comments carry more weight than anyone on CT. Sorry Guys
A good discussion, I pray for, an argument, not. Insiders last suggestion is the best, to take it to the experts, especially Diamond & Weinberg.