I'm still learning the nuance of what constitutes a true doubled die, but I came across this in close inspection of the 2018 D Pictured Rocks ATB quarter. Does this look like it may be a doubled die or is it something else? I couldn't find this particular doubled die variety listed anywhere but I could have missed it. Sorry I know the lighting wasn't the best, either. I hope you experts can help here! Obverse: Reverse: Anomaly closeup #1: Anomaly closeup #2: Unaffected coin closeup for comparison:
Go to the Doubled Die website. Doubleddie.com and look for the section that talks about MD - Mechanical Doubling. It is in the worthless doubling tab.
I thought this might be MD, and I'm pretty good at identifying it on numbers and letters, but I wasn't certain on this. Thanks a bunch for the response!