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Coin and Paper Money Collecting/Mis stamped quarter. Date unknown

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Question
mis stamped quarter on right
mis stamped quarter on  
I found this going through some change the other day.  It looks like it wasn't stamped hard enough.  In the picture, it is the one on the right, the left is a normal quarter.  Are these rare?  What are they worth?

Answer
Nick:

Photo is poor quality, too hard to establish what you have. Two possibilities exist for real errors of this type. Filled or greased die and die adjustment strike. The latter is scarcer.

A real error coin like yours, if a die adjustment strike, would likely retail for approximately $50 to $125. This happens during te start up or shut down of the press, where the full pressure used to strike the coin, is not used. The result is a coin lacking the design, and lettering in the center of the coin. An altered coin would have no added numismatic value. Someone may have put the coin on a buffing wheel and ground it down, making it thin.

Sometimes people try and fool you into thinking you have a real error coin. Here are some examples of coins either being altered or damaged.
See link: http://coinauctionshelp.com/page15.html
See link: http://conecaonline.org/content/OhNo.htm

A greased die is the result of dirt, grim, and machine oil getting on the surface of the die as the coins are struck. This type of error would be repetitive, and hundreds to thousands could be struck until the operator catches the error and/or the die surface is wiped clean of the "gunk".

As far as value, it would depend primarily on the condition of the coin and amount of die surface that is filled. Circulated filled dies trade for about $3 to $5. Uncirculated filled dies can bring from $10 to $25.

Check ebay listing under US coins in the error category to see if coins like yours are listed. You may also want to check out these links on error coin values:
http://www.coinsite.com/html/USErrorPrices.asp
http://www.minterrornews.com/priceguide.html

Remember, should you choose to sell your coin, get at least two estimates from professional coin dealers (PNG). I've listed a link for you to find them in your area.
Link: http://www.pngdealers.com/dealersearch.php

Dealers normally pay between 50% to 60% of retail for items they want.

Please remember to go to the experts site to rate this answer. And check the nomination box on the rating page below any comments you may have.

Thank You and Good Luck in your collecting.  

Coin and Paper Money Collecting

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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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