2021 D Quarter Tuskgee Airmen

Not an error. It's stained.

On the wing, it could be a Die Chip forming.

When I crop and enlarge the picture, it becomes a bit pixelated. However, it does look like there might be a small die chip on the front edge of the wing.

This is nothing the hobby would collect/value. A lot of people are mislead by online clickbait videos and tons of worthless ebay auctions wrongly being sold as rare error coins. If you want to find real error coins, you have to first know what real error coins are.

Looking for random anomalies on coins and hoping they match up to something collectable will take you a lot more time, wasted effort, and disappointment repeatedly finding out you have nothing but post mint damage, useless Machine Doubling, Die Deterioration, or minor insignificant imperfections (etc.).

Spend some initial time at places like error-ref.com, doubleddie.com, varietyvista.com, conecaonline.org, coppercoins.com etc. to find what actual and collectable coin errors look like.

A good way to start is, for instance, separate a bunch of pennies by date. Go to varietyvista.com and, date by date, use the reference there to see what errors are known for that specific coin/mint mark. Look for those specific errors/varieties using the pictures provided. After doing this for awhile you will KNOW what an actual error looks like and not have to waste time on face value and damaged coins.

@Stacyfae214 Small die chip on wing. The rest looks like normal wear and tear, scratches, abrasions and stains.

The 2021 Tuskegee Airmen quarter have a die chip on the Airmen's goggles, they can show a die break on the wing of an airplane, or a die crack on the buildings. The crossing the delaware also a die chip on Washington's hat.

There has been a error on a 2021 p tuskegee airman quarter where the building looked like it had smoke coming out like a burning building but that was an error due to a strike through. I have a couple of those in my collection I have that I found searching myself since they were pretty dramatic and quite popular.

This is what that one looks like by the way to look for:

Hi Dearborn. Yes the 2021 burning tower is an actual strikethrough error in just the right place on the coin which made it popular since it made it look more like it was being bombed or burning.

Die Chips can get progressively larger as more and more coins are struck. This is the biggest one I've seen so far below so far on the 2021-p washington crossing the delaware quarter hat which sold for 16.27 to give you an idea on those. Generally they do not carry a large value since they can be common also, most are small and its only ones that do something interesting to the design that typically sell or people would potentially want to keep in their collection. However I completely understand that serious collectors know they are common and so don't generally give them much thought, similar to BIE's etc. Not everyone collects based on values and finding them is quite fun to some since it really only needs some change to get started, or currency such as finding a radar, 6 of a kind or fancy serial is possible even if most arent going to let you retire early....I think it should be more encouraged as it gets people possibly later interested.