I believe what you are seeing is just severe corrosion buildup. There would be no way to identify if this is an overdate in this condition. Additionally, where the 7 would be on a genuine overdate example is actually higher up than the corrosion buildup on your coin. The underlying 7 on a genuine overdate does not protrude into the side of the 8 like your coin does, another feature that is inconsistent with your example.
Take a look at my example to compare:



(Blue line represents where the overdate would be on your coin and the red represents the overdate on my example. It's not a match)
Did you list this coin on
ebay?
https://www.ebay.com/itm/3140564613...s&media=COPYHope this helps!
-CH27
Collector of U.S. Coins, Varieties, and Colonial Coinage
Edited by CoinHunter27
06/30/2022 8:58 pm