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Coin and Paper Money Collecting/2000P Copper Maryland Statehood Quarter

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Question
Obverse
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I have a 2000P Maryland Statehood Quarter that appears to be all copper.  There are no signs of the alloy planchet anywhere. The coin is not colored in any way and has not been treated. It also does not appear to be counterfeit. I've been collecting for over 50 years and have not seen anything like this one.  Are you familiar with this type of error?

Answer
Denis:

Yes. It is possible. Usually the "all copper" coins are thinner. What does your coin weigh compared to a normal quarter? A normal quarter weighs 5.67 grams. Is it the same thickness? This type of error can happen at the start or end of a roll of planchet material, where the cladding that normally "sandwiches" the copper core in the center is missing.

It could be copper plated. If it weighs the same or slightly more than normal, it's suspect and likely made after it left the mint.

Your coin should be looked at by an expert to determine if it is a legitimate mint error. A real error could be worth several hundred dollars. If the weight is different from a normal quarter, let me know.

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Ronald Fern

Expertise

I can answer most all questions relating to US coins, tokens, and currency. I'm not strong on world coins or ancients. Primary field of expertise is errors and varieties. Over 55 years experience in coin collecting. Part time dealer since 1976. Employed by McDonnell Douglas/Boeing for over 34 years as an Industrial Engineer/Technical Specialist before retiring in 2002.

Experience

Worked weekends for "Lonesome" John in the late 1960's to mid 1970's processing error coins, packaging, and preparing orders. Worked with John Devine and Fred Weinberg on several California Error A Rama's in the early 1970's. Served as display judge at annual Error-A-Rama coin shows. Opened and operated mail order coin business DBA "CAL ERRORS" in 1976. Contributor to Alan Herbert's "Official Price Guide To Mint Errors" and Fivaz/Stanton "Cherrypickers' Guide". Worked Saturdays at Huntington Beach Coin Exchange 1980-1999. Had table and sold coins at a number of coin and gun shows in So CA, AZ and NV. Sell coins, tokens and currency on Facebook. Past "Errorscope" Editor. Presently CONECA Examiner.

Organizations
ANA, CONECA, CWTS, NLG

Publications
Errorscope, Numismatic News, Civil War Token Journal, Error and Variety News

Education/Credentials
AA Degree LBCC pre Engineering, 1964 BS Degree CSULB Ind Technology, 1968

Awards and Honors
1st Place EAR Trophy for Civil War Token Errors, NLG Author of Year Award for best monthly coin column "Error News and Views" in small Numismatic paper, owned and published by Ray Anthony.

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