1987-D Quarter Error? Any Ideas? Thanks

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Author	Replies: 5 / Views: 502
Chizzy New Member United States 23 Posts	Posted 10/28/2024 1:51 pm Ok so checking my pocket change and found this. 1987 D quarter Weight 5.34g Diameter 24mm Thickness 1.75mm The last photo that has 3 coins are to show the difference from 2 other quarters and the middle coin is the coin in question. It's under weight and rim looks different for sure. Doesn't have wear on it to drop it .33 below weight so I wanted to get suggestions. Let me know your thoughts. Thanks Report this Post to the Staff

Errers and Varietys Bedrock of the Community United States 74001 Posts	Posted 10/28/2024 1:55 pm Looks like an acid coin. PMD. https://www.error-ref.com/acid-shrunk-coins/ Errers and Varietys. Edited by Errers and Varietys 10/28/2024 1:56 pm Report this Post to the Staff
Tacc Pillar of the Community United States 3535 Posts	Posted 10/28/2024 1:59 pm Text Book example of acid exposed quarter. Copper core is softer metal than the cupro-nickel layers, so dissolves faster. Report this Post to the Staff
ijn1944 Bedrock of the Community United States 19147 Posts	Posted 10/28/2024 2:12 pm Yes, the result of exposure to a corrosive environment. Report this Post to the Staff
Dearborn Moderator United States 95630 Posts	Posted 10/28/2024 5:02 pm yes, this would be an acid dipped coin. I have one too - here's how it looks after a long time in acid: Collecting since 1972. Learning from then on "Tell me and I forget. Teach me and I remember. Involve me and I learn." - Benjamin Franklin 7070 type set coin count: 51/76 Uncirculated American Silver Eagles My American Silver Eagle Proof Collection Sacagawea Dollars Innovation Dollars Eisenhower-Dollars Kennedy-Half Dollars Washington-Quarters Roosevelt-Dimes Buffalo-Nickels 1938-2005 Jefferson-Nickels Lincoln-Cents Report this Post to the Staff
Marv65 Bedrock of the Community United States 10515 Posts	Posted 10/28/2024 5:14 pm Right - pure copper dissolves faster than 75% copper/25% nickel (clad layers) Report this Post to the Staff
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