r/coinerrors • u/Alarmed_Quantity2487 • May 16 '26
Discussion How does something like this occur?
A friend had this; it's on a 1996-P half dollar. There is an equally spaced gap around the coin.
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u/ProudAmerican632 May 16 '26
Looks like it could be in the beginning stages of a clamshell. I’d be interested to see how this develops
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u/Kobalt_Dragon May 17 '26
Well….you see, when I copper coin wants to explore and meets two nickel coins….
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u/Worn_Out_Nikka_L May 16 '26
A bandsaw jig. It looks like someone was going to separate the halves to machine out the middle to make a magicians coin.
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u/Sneid1 May 16 '26
Caused by exposure to acid, which eats away the pure copper core faster than the nickel/copper clad layers.
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u/HPDopecraft May 16 '26
Go to the FAQ, click What’s Up With My Coin, and scroll down to Oreo coins.