I know 1 picture is enough but I'm a little excited. All the pros in here say you will know it when you find a doubled die and you will be kicking yourself for thinking so many others were. Let's just hope I am correct on this or I will take the dunce hat and wear it proudly. Got the 1983 D Washington Quarter back as change yesterday and looked down to see it was an 83 but didn't look close until it almost got spent today. Really, I was just looking for spitting eagle. If this isn't a doubled die please tell me its something better than ddd or md.
The mint mark would not be affected on a doubled die. The mint mark was hand punched into finished dies. Therefore not a design feature present on a die during the hubbing process where doubled dies are created. In other words if it ain't there during the hubbing process then it cannot be doubled during the hubbing process.
The 83's (and 82's) are often "mushy". While there may be doubling on the "E" in "WE", it's not the good kind.
Don't feel bad. I have piles up 'possibles' that I'm probably never going to be able to validate one way or the other.
I was looking at the OPs coin and started convincing myself that the stuff I was seeing around the U was DD. I wanted to see what the OP was seeing. I convinced myself it was DD for a short time. Until I shook it off. It's very easily to convince oneself of DD in many instances. Learn how the earlier DD's are made in the "double squeeze" time of which Working Dies are created in two presses from the Master Dies. After the first squeeze they had to be removed and reheat treated (softened) to receive the second squeeze. Of course if they are not realigned 100% something odd like the 1955 happens. If you go here and take notes, bullet line items, you will start understanding the entire process of die making and DDs http://doubleddie.com/58201.html and here http://doubleddie.com/58222.html and here's info on MD/DDD. Once again, read slowly and take your own notes in bullet line item for clarity https://www.cointalk.com/threads/mechanical-doubling-what-i-dont-get-about-it.258196/ https://www.ngccoin.com/news/article/5688/Double-Dies-vs-Machine-Doubling/ https://en.wikipedia.org/wiki/Die-deterioration_doubling http://www.error-ref.com/isolated-machine-doubling/ What you can also do is research which coins have DD. Create a list, and use that list to help you search out any DDs out there. If you are looking to "discover" a new one then keep in mind that it's easy to convince oneself that they had a DD. So you have to keep learning and reading what DD is, and what it isn't even in the double and single squeeze eras of the coin making process.